Numbers of the form $10^n+1$

Remark

Not looking firstly at factordb, I "refound" factors which factordb marks as "created before March 17, 2011".
I'm removing any of these factors from the table below, one by one, silently.
In the range $n\ge14000$ any of these factors is removed.

Efforts (ecm)

rangeruns@B1number of factorsdate
69501-700001@3e3, 1@5e3, 1@1e45, 10, 12Jan 4, 2018
69001-695002@1e33Jan 4, 2018
41001-420001@3e3, 1@5e33, 5Jan 9, 2018
8001-90001@5e42Jan 7, 2018
7001-800010@25e440Jan 8, 2018
4001-50001@5e4, 1@1e5, 1@15e4, 1@2e5, 1@25e4, 1@3e5, 1@35e4, 1@4e5, 1@45e4, 1@5e5
1@55e4, 1@6e5, 1@65e4, 1@7e5, 1@75e4, 1@8e5, 1@85e4, 1@9e5, 1@95e4, 3@1e6
1@11e5, 1@12e5, 1@13e5, 1@14e5, 1@15e5
0, 0, 0, 0, 1, 1, 0, 0, 0, 0
0, 1, 0, 0, 0, 1, 0, 2, 0, 1
0, 0, 0, 0, 0
Feb 16, 2018
4501-50001@25e4, 1@3e60, 0Feb 4, 2018
70001-710001@1e2, 1@5e2, 1@1e3, 1@2e3, 1@3e3, 1@4e3, 10@5e30, 0, 1, 11, 3, 3, 65Feb 4, 2018

Results

composite digits date factor(s) method
$10^{3010}+1$
(M-value)
996 Nov 3, 2017 $377659045698120991814418877959941381$
c960
ecm
$10^{3676}+1$ 3629 Sep 29, 2017 $2623552005321388434037145143121$
c3599
ecm
$10^{3747}+1$ 5841 Oct 8, 2016 $4695948608569732308219433681$
c2452
ecm
$10^{4065}+1$ 2090 Jan 14, 2018 $399043838982071991709808323681$
c2060
ecm
$10^{4075}+1$ 3228 Jan 24, 2018 $549692094842681735580674239279801$
c3196
ecm
$10^{4150}+1$
(L-value)
1598 Feb 10, 2018 $267352619706048404954978381518286405201$
c1560
ecm
$10^{4154}+1$ 3961 Jan 27, 2018 $162671769021508746091227108361$
c3931
ecm
$10^{4201}+1$ 4173 Jan 27, 2018 $47962315664132037883886339559337823$
c4139
ecm
$10^{4238}+1$ 3862 Jan 22, 2018 $1963726703284756552906455136069$
c3832
ecm
$10^{4271}+1$ 4267 Jan 15, 2018 $48202989597749068566661266155887$
c4235
ecm
$10^{4470}+1$
(M-value)
1130 Oct 14, 2017 $5275415368338873197815559526085771801$
c1094
ecm
$10^{4523}+1$ 4514 Jan 20, 2018 $29106719227380924261687718736389163183$
c4477
ecm
$10^{4557}+1$ 2514 Jan 15, 2018 $8547974217374353152743331757$
c2486
ecm
$10^{4610}+1$
(M-value)
1831 Oct 14, 2017 $5275415368338873197815559526085771801$
c1799
ecm
$10^{4626}+1$ 3054 Jan 22, 2018 $4192371437070223690660387107541$
c3024
ecm
$10^{4793}+1$ 4785 Feb 3, 2018 $343575467224788555287460428801$
c4755
ecm
$10^{4805}+1$ 3701 Dec 26, 2017 $3122476819207517804807857327849801$
c3667
ecm
$10^{4858}+1$ 4126 Feb 6, 2018 $13762552890503863967484529230589$
c4095
ecm
$10^{4912}+1$ 4848 Feb 3, 2018 $18198559922005306277650072144139297$
c4813
ecm
$10^{4954}+1$ 4946 Feb 1, 2018 $3859183268538790375453543769$
c4918
ecm
$10^{6283}+1$ 6097 Sep 29, 2017 $900029553397513663699957$
c6073
ecm
$10^{6337}+1$ 6302 Sep 29, 2017 $3921287348941866361612681$
c6278
ecm
$10^{6349}+1$ 5422 Sep 22, 2017 $41323393257079936619$
c5403
ecm
$10^{6355}+1$ 4791 Sep 22, 2017 $16177706855807148013759321$
c4766
ecm
$10^{6358}+1$ 5411 Sep 29, 2017 $8288802889698536041$
c5392
ecm
$10^{6439}+1$ 6257 Sep 29, 2017 $2649332030601650197361$
c6235
ecm
$10^{6442}+1$ 6402 Sep 29, 2017 $59744703402567129901$
c6382
ecm
$10^{6446}+1$ 2480 Jun 25, 2016 $6044319878329815620341$
c5819
ecm
$10^{6479}+1$ 5380 Sep 29, 2017 $1330832951601086266213$
c5359
ecm
$10^{6563}+1$ 6551 Sep 22, 2017 $116956524993138943823$
c6531
ecm
$10^{6607}+1$ 6570 Sep 29, 2017 $185747386065365610371$
c6550
ecm
$10^{6613}+1$ 6197 Sep 29, 2017 $46318131551930958534757$
c6174
ecm
$10^{6645}+1$ 3507 Sep 29, 2017 $119319936040211118754771$
c3484
ecm
$10^{6664}+1$ 5368 Sep 22, 2017 $900243410208970091489$
c5347
ecm
$10^{6692}+1$ 5713 Sep 29, 2017 $576010318801696546769$
c5692
ecm
$10^{6761}+1$ 6760 Jun 15, 2016 $480263609216711706345386042743$
c6731
ecm
$10^{6829}+1$ 6806 Sep 29, 2017 $59693295415512449994642571$
c6780
ecm
$10^{6851}+1$ 5748 Sep 29, 2017 $241608022841545076962493$
c5724
ecm
$10^{6863}+1$ 6836 Sep 29, 2017 $45065162809982105760749743$
c6811
ecm
$10^{6881}+1$ 5871 Sep 29, 2017 $1560691770056722282816411$
c5846
ecm
$10^{6886}+1$ 6229 Sep 29, 2017 $123100372911781374121$
c6209
ecm
$10^{6939}+1$ 4588 Dec 26, 2017 $545925524052205140121$
c4567
ecm
$10^{7001}+1$ 7000 Jun 10, 2016 $1561479950925433052464289$
c6976
ecm
$10^{7006}+1$ 6713 Jan 8, 2018 $184229701894783578759981901$
c6687
ecm
$10^{7041}+1$ 4676 Dec 26, 2017 $5850843396650386153171$
c4654
ecm
$10^{7099}+1$ 6841 May 30, 2016 $284070291527468019579529$
c6817
ecm
$10^{7057}+1$ 7050 Sep 29, 2017 $16358209681846628315767$
c7028
ecm
$10^{7141}+1$ 6889 Dec 26, 2017 $793503953126725638851$
c6868
ecm
$10^{7156}+1$ 7114 Jun 2, 2016 $212024446055889956185033$
c7091
ecm
$10^{7163}+1$ 6019 Dec 26, 2017 $146869885479664432737727583$
c5993
ecm
$10^{7174}+1$ 6694
6673
May 31, 2016
Jun 4, 2016
$225507005306473819169$
$324996050516033681801$
c6653
ecm
$10^{7175}+1$ 4791 May 30, 2016 $1843745270547105538201$
c4770
ecm
$10^{7183}+1$ 6510 Jan 8, 2018 $73252115401781600329651$
c6487
ecm
$10^{7224}+1$ 3963 Jun 2, 2016 $2379979092067452316304977$
c3939
ecm
$10^{7231}+1$ 6161 Jan 8, 2018 $373744121548960953092638211$
c6135
ecm
$10^{7244}+1$ 7201 Jan 8, 2018 $4338930974443121489$
c7182
ecm
$10^{7287}+1$ 4132 Jan 8, 2018 $230079613099980442839853$
c4108
ecm
$10^{7318}+1$ 7290 Jan 8, 2018 $9650879377721564986981$
c7268
ecm
$10^{7319}+1$ 6729 Jan 8, 2018 $1335872827071194003710075127$
c6702
ecm
$10^{7324}+1$ 7315 Jan 8, 2018 $340732162573860661086481$
c7291
ecm
$10^{7344}+1$ 4596 Jan 8, 2018 $2790616785981387244639375393$
c4569
ecm
$10^{7361}+1$ 6913 Jan 8, 2018 $9481669366888597961$
c6894
ecm
$10^{7377}+1$ 4892 Jan 8, 2018 $19651861928602003061179$
c4870
ecm
$10^{7384}+1$ 6696 Jun 3, 2016 $43454168694845310892105258033$
c6668
ecm
$10^{7404}+1$ 4905 Jan 8, 2018 $10714454127632448946677760777$
c4877
ecm
$10^{7411}+1$ 7368 Jun 3, 2016 $3765549704479520916216529$
c7343
ecm
$10^{7448}+1$ 6027 Jan 8, 2018 $106965770824409160791681$
c6004
ecm
$10^{7531}+1$ 7073 Jan 8, 2018 $41789212487855774916782041567$
c7044
ecm
$10^{7637}+1$ 6511 Dec 26, 2017 $10826699888307686963651$
c6489
ecm
$10^{7681}+1$ 7645 Jan 8, 2018 $11027780460953131383317$
c7623
ecm
$10^{7690}+1$
(M-value)
3050 Oct 14, 2017 $79181609711634497116501$
c3027
ecm
$10^{7703}+1$ 7690 Jan 8, 2018 $2950988975563359178406663$
c7665
ecm
$10^{7709}+1$ 7095 Jan 8, 2018 $15573856823091761359933$
c7073
ecm
$10^{7712}+1$ 7660
7637
Jun 7, 2016
Jan 8, 2018
$22129977051399538374593$
$152458711539456545407489$
c7614
ecm
$10^{7733}+1$ 6469 Jan 8, 2018 $783626340670839551447$
c6448
ecm
$10^{7756}+1$ 6616 Jan 8, 2018 $2088195830991883753196547121$
c6589
ecm
$10^{7760}+1$ 6117 Jan 8, 2018 $224447253368161784040001$
c6094
ecm
$10^{7766}+1$ 7033 Jan 8, 2018 $704670382607997461569$
c7012
ecm
$10^{7781}+1$ 7480 Jan 8, 2018 $507441177586958191607$
$1155952459333026803411$
c7438
ecm
$10^{7782}+1$ 5133 Jan 8, 2018 $208364218199773901194184787289$
c5104
ecm
$10^{7786}+1$ 7260 Jun 10, 2016 $2025437561376616529$
c7242
ecm
$10^{7794}+1$ 5144 Jan 8, 2018 $75663664800862926421$
c5124
ecm
$10^{7814}+1$ 7798 Jan 8, 2018 $188828626187781596143038101$
c7772
ecm
$10^{7832}+1$ 7006 Jan 8, 2018 $4248779626326631162097$
c6984
ecm
$10^{7849}+1$ 7621 Jun 10, 2016 $2196711437732572704837811$
c7597
ecm
$10^{7859}+1$ 7561 Jun 10, 2016 $128303069589939817237127$
c7537
ecm
$10^{7871}+1$ 7393 Jan 8, 2018 $395707085959696944770810411$
c7366
ecm
$10^{7875}+1$ 3569 Jan 8, 2018 $52192856680349056538765850001$
c3540
ecm
$10^{7905}+1$ 3832 Jan 8, 2018 $41798027067168641590081$
c3809
ecm
$10^{7908}+1$ 5259 Jan 8, 2018 $1016215540511891626460137$
c5235
ecm
$10^{7917}+1$ 4015 Jan 8, 2018 $742739576669085574489$
$1462894612834923304219$
c3973
ecm
$10^{7937}+1$ 7932 May 29, 2016 $6855501342565849489$
c7913
ecm
$10^{7941}+1$ 5266 Jan 8, 2018 $868696470986757534995892331$
c5239
ecm
$10^{7945}+1$ 5412 Dec 26, 2017
Jan 8, 2018
$436463519331732568770641$
$2472414752431679651$
c5370
ecm
$10^{7959}+1$ 4508 Sep 29, 2018 $1000829625965714707547449$
c4484
ecm
$10^{7962}+1$ 5280 Jan 8, 2018 $596033698257320793682690216789$
c5250
ecm
$10^{7988}+1$ 7967 Jan 8, 2018 $4020596646617306194121281$
$1995334937104075433$
c7925
ecm
$10^{7999}+1$ 7540 Jan 8, 2018 $343090161835169125615729$
c7516
ecm
$10^{8003}+1$ 7796 Mar 1, 2018 $31331216296939805936693$
c7774
ecm
$10^{8005}+1$ 6369 Mar 1, 2018 $36056469502959873542851$
c6347
ecm
$10^{8008}+1$ 5760 Mar 1, 2018 $10192257292619783132753$
$370802969045684565847699177937$c5709
ecm
$10^{8011}+1$ 7997 Mar 1, 2018 $4699049100049575534157$
c7975
ecm
$10^{8015}+1$ 5459 Mar 1, 2018 $3182358285538338938011$
c5437
ecm
$10^{8016}+1$ 5308 Mar 1, 2018 $4889387880365043005482522273$
c5281
ecm
$10^{8017}+1$ 7990 Mar 1, 2018 $1138788047438831285179129$
c7966
ecm
$10^{8019}+1$ 4846 Mar 7, 2018 $632621329531962976471138687$
c4819
ecm
$10^{8021}+1$ 7367 Mar 1, 2018 $38180660433946868854047802291$
c7338
ecm
$10^{8026}+1$ 8014 Mar 1, 2018 $230434156416919357504854149$
$11220379748436542459729$
c7966
ecm
$10^{8031}+1$ 5346 Mar 1, 2018 $2040052315786969713590983$
$105021170017502783605838608705117$
c5290
ecm
$10^{8036}+1$ 6694 Mar 1, 2018 $4180491979461227921009$
c6672
ecm
$10^{8040}+1$ 4202 Mar 1, 2018 $37876619853775060414081$
c4179
ecm
$10^{8044}+1$ 8019 Jun 7, 2016
Mar 1, 2018
$479130688602290369$
$4363650688053643382528506481$
c7973
ecm
$10^{8057}+1$ 6873 Jun 10, 2016 $419053669019336330514342893$
c6847
ecm
$10^{8061}+1$ 5368 Oct 1, 2017 $51439215892406134477$
c5348
ecm
$10^{8063}+1$ 7307 Mar 1, 2018 $292751774561009766092927$
c7283
ecm
$10^{8067}+1$ 5338 Mar 1, 2018 $1022965860013764807139$
c5317
ecm
$10^{8074}+1$ 7311 Jun 7, 2016 $55997061575122850589221$
c7288
ecm
$10^{8076}+1$ 5342 Jan 7, 2018 $1262123248493735684653565977$
c5315
ecm
$10^{8079}+1$ 5351 Mar 1, 2018 $183008218825360328809$
c5331
ecm
$10^{8080}+1$ 6383 Jun 10, 2016 $208834279440434181761$
c6383
ecm
$10^{8084}+1$ 7697 Mar 8, 2018 $2867443649364054475343041995521$
c7667
ecm
$10^{8086}+1$ 7406 Jun 9, 2016 $27489992513114011788181$
c7384
ecm
$10^{8093}+1$ 8087 Mar 1, 2018 $1020058097574576146276921$
c8063
ecm
$10^{8095}+1$ 6468 Mar 7, 2018 $2700673176690155379491$
$4943998794769991229999491$
c6422
ecm
$10^{8097}+1$ 5377 Mar 3, 2018 $74717567754635372799249973$
c5351
ecm
$10^{8099}+1$ 6322 Mar 3, 2018 $123474591212464107593251$
c6299
ecm
$10^{8102}+1$ 8091 Mar 3, 2018 $100354903429811405421636841$
c8065
ecm
$10^{8115}+1$ 4273 Mar 8, 2018 $589078118316588764011$
c4252
ecm
$10^{8128}+1$ 8036 Mar 7, 2018 $159598692016900681330817$
c8012
ecm
$10^{8137}+1$ 7952 Mar 7, 2018 $251125701386549663111897441$
c7925
ecm
$10^{8140}+1$ 5744 May 30, 2016 $69872374128903104881$
c5724
ecm
$10^{8147}+1$ 8133 Mar 7, 2018 $5695555331329833707303$
$20056881577150959212650877$
8086
ecm
$10^{8150}+1$
(M-value)
3240 Mar 7, 2018 $2348108119553742714216401$
c3216
ecm
$10^{8165}+1$ 6160 Mar 4, 2018 $850431283134665625757531$
c6137
ecm
$10^{8173}+1$ 7402
7383
Jun 7, 2016
Dec 26, 2017
$12405133508386593899$
$4230995398887217379$
c7365
ecm
$10^{8175}+1$ 4320 Mar 7, 2018 $574007732417758476986851$
c4297
ecm
$10^{8176}+1$ 6899 Mar 4, 2018 $11934567408722541302636897$
c6874
ecm
$10^{8185}+1$ 6545 Mar 7, 2018 $4275155963843845114583010529681$
c6514
ecm
$10^{8186}+1$ 8152 Dec 26, 2017 $109311299863326236609$
c8132
ecm
$10^{8197}+1$ 6992 Mar 7, 2018 $62619650659347901679260093$
c6966
ecm
$10^{8203}+1$ 7561 Jun 7, 2016 $14613343393682854047027841$
c7535
ecm
$10^{8213}+1$ 7981 Jun 15, 2016 $332033464287125534441$
c7960
ecm
$10^{8218}+1$ 7033 Mar 8, 2018 $62739436032911903633697449$
c7007
ecm
$10^{8222}+1$ 8210 Mar 7, 2018 $507129613949013184875341$
c8187
ecm
$10^{8225}+1$ 5500 Mar 7, 2018 $5846123145569130040199062201$
c5472
ecm
$10^{8229}+1$ 5016 Mar 28, 2018 $7680624666089700021997$
c4994
ecm
$10^{8232}+1$ 4663 Mar 2, 2018 $39643733584880700182008753$
c4638
ecm
$10^{8234}+1$ 7824 Feb 24, 2018 $341541481880705969$
c7807
ecm
$10^{8237}+1$ 8231 Mar 2, 2018 $398303358408040377583$
$540652874622656549233457426074884961$
c8175
ecm
$10^{8240}+1$ 6498 Feb 24, 2018 $2905028403163188339841$
c6477
ecm
$10^{8229}+1$ 5016 Mar 28, 2018 $7680624666089700021997$
c4994
ecm
$10^{8245}+1$ 6139 Mar 10, 2018 $1305910854369128351032983761$
c6112
ecm
$10^{8252}+1$ 8234 Mar 2, 2018 $283129017633964102881883753$
c8208
ecm
$10^{8257}+1$ 7856 Mar 3, 2018 $5491049715552009782366423$
c7831
ecm
$10^{8259}+1$ 5494 Mar 3, 2018 $732370516304470909186201$
c5470
ecm
$10^{8262}+1$ 5185 Mar 1, 2018 $12001521923292075594263101$
c5159
ecm
$10^{8265}+1$ 4022 Feb 24, 2018 $3530816312280259198921$
c4001
ecm
$10^{8268}+1$ 4970 Jan 7, 2018 $25922039400701642010697$
c4948
ecm
$10^{8274}+1$ 4699 Mar 1, 2018 $32346281503803379241583721$
$3298621327616170685375569$
c4649
ecm
$10^{8278}+1$ 8264 Mar 1, 2018 $538235358686878562668009$
c8240
ecm
$10^{8279}+1$ 7750 Feb 24, 2018 $85229865075272144409552011$
c7724
ecm
$10^{8283}+1$ 4975 Dec 26, 2017
Mar 1, 2018
$3137981086839729373$
$1357688906722441838874523063$
c4929
ecm
$10^{8284}+1$ 7749 Mar 1, 2018 $276905988738855664805273$
$2127164804291353900635281$
c7701
ecm
$10^{8288}+1$ 6913 Feb 24, 2018 $736806111316855372801$
c6892
ecm
$10^{8289}+1$ 5493 Dec 26, 2017 $34531987464417801709764451$
c5468
ecm
$10^{8296}+1$ 7673 Feb 16, 2018 $15342981436280399162218241$
c7648
ecm
$10^{8307}+1$ 5028 Feb 16, 2018 $7996975836721958732220254863$
c5000
ecm
$10^{8317}+1$ 8301 Feb 15, 2018 $1038714641275349814463$
c8280
ecm
$10^{8327}+1$ 7543 Feb 15, 2018 $28724722020458741343325579$
c7518
ecm
$10^{8331}+1$ 5553 Feb 18, 2018 $4787605867264922851819$
c5531
ecm
$10^{8332}+1$ 8297 Feb 19, 2018 $39175818992754006882411977$
c8271
ecm
$10^{8335}+1$ 6654 Feb 19, 2018 $81937835759235223147755491$
c6628
ecm
$10^{8338}+1$ 7561 Mar 1, 2018 $157554119215176342291178104768749$
c7528
ecm
$10^{8340}+1$ 4399 Jun 3, 2016
Mar 1, 2018
$152893211386405921$
$1577791282957615622619601$
c4358
ecm
$10^{8344}+1$ 7105 Mar 25, 2018 $1300386881663860941933430561$
c7077
ecm
$10^{8345}+1$ 6652 Dec 26, 2017 $447296144268274403871371$
c6628
ecm
$10^{8349}+1$ 4827 Mar 1, 2018 $207161279808764763865681$
c4804
ecm
$10^{8350}+1$
(L-value)
3297 Feb 16, 2018 $48738021254244743670562601$
c3271
ecm
$10^{8350}+1$
(M-value)
3235 Feb 16, 2018 $208028179913154058067402701$
c3209
ecm
$10^{8354}+1$ 8346 Mar 1, 2018 $6578742164811699629$
c8327
ecm
$10^{8356}+1$ 8352 Feb 16, 2018 $374457044618694563332491262537$
c8323
ecm
$10^{8357}+1$ 8137 Mar 1, 2018 $2464228151280060400837137059$
c8109
ecm
$10^{8358}+1$ 4739 Mar 1, 2018 $386637311352441829$
c4721
ecm
$10^{8364}+1$ 5101 Mar 25, 2018 $4428704254379093176538857$
c5077
ecm
$10^{8373}+1$ 5562 Mar 1, 2018 $10645716678545974314501997$
c5537
ecm
$10^{8382}+1$ 5015 Mar 1, 2018 $2339304400301882371249$
c4993
ecm
$10^{8389}+1$ 8355 Dec 26, 2017 $3558906224666317423$
c8337
ecm
$10^{8399}+1$ 8130 Feb 22, 2018 $3424308486638684041081$
c8109
ecm
$10^{8403}+1$ 5578 Dec 26, 2017 $2870965107712147907557$
c5556
ecm
$10^{8407}+1$ 7182 Feb 21, 2018 $4144829391487141243979$
c7160
ecm
$10^{8411}+1$ 7736 Dec 26, 2017 $98340922229249761766107286573$
c7707
ecm
$10^{8415}+1$ 3795 Mar 4, 2018 $1924064610992122440601$
c3774
ecm
$10^{8422}+1$ 8407 Feb 16, 2018 $149063403728415614849$
c8387
ecm
$10^{8428}+1$ 7057 Mar 1, 2018 $2405626602289344572881$
c7035
ecm
$10^{8430}+1$
(M-value)
2207 Feb 18, 2018 $ 30273019605795476057394847541970661$
c2172
ecm
$10^{8437}+1$ 6929 Mar 1, 2018 $65600823870089731939$
c6909
ecm
$10^{8447}+1$ 8419 Mar 1, 2018 $6010388677007473625743$
c8397
ecm
$10^{8449}+1$ 6700 Mar 1, 2018 $409041092978637753528614410447$
c6670
ecm
$10^{8451}+1$ 5598 Mar 1, 2018 $411634579360466144779597$
c5575
ecm
$10^{8453}+1$ 8252 Mar 1, 2018 $5126721519633777297539$
c8231
ecm
$10^{8458}+1$ 8432 Mar 1, 2018 $7147413311905406435804929$
c8407
ecm
$10^{8459}+1$ 7675 Mar 1, 2018 $93679391743143854798921$
c7652
ecm
$10^{8463}+1$ 4273 Mar 1, 2018 $15722725511358923161751011$
c4247
ecm
$10^{8464}+1$ 8078 Mar 1, 2018 $65387407633579649$
$726623996021355937$
c8043
ecm
$10^{8465}+1$ 6746 Mar 1, 2018 $426999345760527468705241$
$1530856135667861234316542321$
c6695
ecm
$10^{8469}+1$ 5624 Mar 25, 2018 $57638349893121349771$
PRP5604
ecm
$10^{8470}+1$
(L-value)
2624 Mar 7, 2018 $2287270309951026739223501$
c2599
ecm
$10^{8471}+1$ 8210 Mar 1, 2018 $38895046571441250889409$
c8188
ecm
$10^{8473}+1$ 8172 Mar 1, 2018 $70578085427987655677$
c8152
ecm
$10^{8477}+1$ 7225 Mar 1, 2018 $4698146048735902707099653$
c7200
ecm
$10^{8480}+1$ 6639 Mar 1, 2018 $66426123964497281$
c6622
ecm
$10^{8483}+1$ 7922 Mar 1, 2018 $127748927532325340999834371$
c7896
ecm
$10^{8487}+1$ 5230 Mar 1, 2018 $26433107030283824775429253$
c5204
ecm
$10^{8488}+1$ 8439 Mar 1, 2018 $473188919557924320913$
c8419
ecm
$10^{8493}+1$ 5315 Mar 1, 2018 $61585627634773013270053$
c5292
ecm
$10^{8496}+1$ 5537 Mar 1, 2018 $320347452644599964461499521$
c5510
ecm
$10^{8509}+1$ 8312 Mar 1, 2018 $2919687748716025279247$
c8290
ecm
$10^{8511}+1$ 5656 Mar 4, 2018 $3427109083569788759205967$
c5632
ecm
$10^{8513}+1$ 8490 Mar 3, 2018 $732845656215897601529$
c8469
ecm
$10^{8514}+1$ 5036 Oct 1, 2017 $12112750237214376873802801$
c5011
ecm
$10^{8517}+1$ 5312 Jun 4, 2016
Mar 5, 2018
$3003525659258043841$
$468050676471121869635828809$
c5267
ecm
$10^{8518}+1$ 8488 Mar 3, 2018 $21952867430137624204089514169$
$3695354842206787371143295109$
c8432
ecm
$10^{8523}+1$ 5651 Mar 1, 2018 $7644035495340848821447$
c5629
ecm
$10^{8524}+1$ 8506 Mar 1, 2018 $1768381086378088277489$
c8485
ecm
$10^{8528}+1$ 7681 Mar 1, 2018 $98536389177074142741303169$
$709345931264051199831070177$
c7628
ecm
$10^{8535}+1$ 4528 Mar 1, 2018 $12072422786471320184761$
$7086543628924834660999206331$
c4478
ecm
$10^{8536}+1$ 7651 Mar 1, 2018 $27329166027967717937$
c7631
ecm
$10^{8537}+1$ 8529 Mar 1, 2018 $3679596072849140331188066179$
c8501
ecm
$10^{8540}+1$ 5738 Mar 15, 2018 $235349973250099425140641$
c5714
ecm
$10^{8541}+1$ 5142 Mar 15, 2018 $1067163336298023935023$
$73719568324522432698858415477$
c5092
ecm
$10^{8542}+1$ 8512 Mar 15, 2018 $266215992123509651599661$
c8489
ecm
$10^{8543}+1$ 8513 Oct 1, 2017 $85303577225083213649$
c8493
ecm
$10^{8547}+1$ 4310 Mar 25, 2018 $411775539153223053733$
c4289
ecm
$10^{8548}+1$ 8514 Mar 26, 2018 $222643183971085825418215361$
c8487
ecm
$10^{8568}+1$ 4608 Mar 8, 2018 $47218150865452646579473$
known to factordb.com since May 20, 2017
c4586
ecm
$10^{8576}+1$ 8427 Mar 2, 2018 $1529984989095463458336107009$
c8400
ecm
$10^{8584}+1$ 8065 Apr 9, 2018 $3400843228818759452161$
$2031812306520759403562417$
$51837331952888071286226577$
c7993
ecm
$10^{8585}+1$ 6392 Mar 2, 2018 $3904322378972769065971$
c6370
ecm
$10^{8593}+1$ 7900
7877
Oct 1, 2017
Mar 26, 2018
$24415412859491394447331$
$288415103445712439279085419$
c7851
ecm
$10^{8598}+1$ 5710 Mar 1, 2018
Mar 4, 2018
$10188883297749090685321$$
c5688
ecm
$10^{8599}+1$ 8598 Mar 4, 2018 $213875165012817706040647$
$151419622804368547047169$
c8552
ecm
$10^{8600}+1$ 6697 Mar 10, 2018 $124882753201313745713270401$
c6671
ecm
$10^{8602}+1$ 7002 Jun 7, 2016
Mar 9, 2018
$8326249069788954701$
$5584551059656041277300132051361$
c6953
ecm
ecm
$10^{8605}+1$ 6873 Mar 1, 2018
Mar 4, 2018
$73258152312961492651$
$1592808435904571324792767891$
c6826
ecm
$10^{8607}+1$ 5400 Mar 4, 2018 $89292770324529415569663379$
c5375
ecm
$10^{8608}+1$ 8564 Mar 4, 2018 $644015315065686843727297$
$4493572781487109417683930625409$
c8509
ecm
$10^{8614}+1$ 8353 Feb 16, 2018 $216806157240853035280069$
c8329
ecm
$10^{8615}+1$ 6856 Mar 1, 2018
Mar 5, 2018
$1839489828264363851$
$73331644452092467901067450590055432841$
c6800
ecm
$10^{8620}+1$ 6881 Mar 1, 2018
Mar 5, 2018
$847397164515256162481$
$5381302483421972729318561$
c6835
ecm
$10^{8648}+1$ 8065 Jun 7, 2016 $886342011604350488641$
c8044
ecm
$10^{8635}+1$ 6200 Mar 6, 2018 $1093556839976954432135308422721$
c6170
ecm
$10^{8653}+1$ 8107 Mar 1, 2018 $34006917375272484810143$
c8085
ecm
$10^{8655}+1$ 4584 Mar 6, 2018 $8630876792933119771$
$752305527241387590228865561$
c4538
ecm
$10^{8658}+1$ 5164 Mar 3, 2018 $746529631897567973930048341$
c5137
ecm
$10^{8662}+1$ 8362 Mar 5, 2018 $3441258196864690388214123812749$
c8331
ecm
$10^{8664}+1$ 5473 Mar 5, 2018 $575678083838722267402282417$
c5446
ecm
$10^{8669}+1$ 8662 Mar 13, 2018 $1514374183038588238921572980557$
c8632
ecm
$10^{8674}+1$ 8661 Mar 15, 2018 $2109448938942154604257361$
c8637
ecm
$10^{8675}+1$ 6916 Mar 15, 2018 $24858923219916166553801$
c6893
ecm
$10^{8682}+1$ 5765 May 30, 2016 $32287503462773749669$
c5745
ecm
$10^{8683}+1$ 8182
8162
Oct 1, 2017
Mar 16, 2018
$202025064384481925339$
$52601832472617475839289969733$
c8133
ecm
ecm
$10^{8686}+1$ 8377 Mar 16, 2018 $1875381309678833620681$
c8356
ecm
$10^{8687}+1$ 6883
6864
Mar 25, 2018
Mar 26, 2018
$35310271386581712361$
$23580990287149131994053677157259$
c6832
ecm
$10^{8692}+1$ 8321 Jun 18, 2016 $25756157667950658881$
c8301
ecm
$10^{8730}+1$
(L-value)
2222 Feb 18, 2018 $389355965356382103083611912561$
c2192
ecm
$10^{8806}+1$ 6896 Jun 4, 2016 $130920811116885469$
c6879
ecm
$10^{8812}+1$ 8787 May 30, 2016 $27155251610963624209$
c8767
ecm
$10^{8925}+1$ 3841 May 30, 2016 $82634488926680036851$
c3821
ecm
$10^{8959}+1$ 8125 Feb 14, 2018 $151061552341355493209$
c8105
ecm
$10^{8969}+1$ 8939 Feb 21, 2018 $26378355965409836380690891$
c8913
ecm
$10^{8971}+1$ 8952 Feb 21, 2018 $8570155066314874227016583$
c8927
ecm
$10^{8973}+1$ 5977 Feb 18, 2018 $31093148189939106833677$
c5954
ecm
$10^{8976}+1$ 5100 Feb 19, 2018 $1554151046446401115085473$
$117741698735703682246337281$
c5050
ecm
$10^{8986}+1$ 8979 Feb 21, 2018 $102075511425770267941$
c8959
ecm
$10^{8992}+1$ 8926 Feb 18, 2018 $178460830119035348918172353$
c8900
ecm
$10^{9012}+1$ 6001 Jun 26, 2016 $584148400059646633$
c5983
ecm
$10^{9037}+1$ 7735 Dec 26, 2017 $2863304253970080362891$
c7714
ecm
$10^{9058}+1$ 7713 Dec 26, 2017 $30628714972761286669$
c7693
ecm
$10^{9067}+1$ 9066 Jun 27, 2016 $11422330595210709509207$
c9044
ecm
$10^{9077}+1$ 8711 Dec 26, 2017 $295541743901327871247$
c8691
ecm
$10^{9081}+1$ 6038 Dec 26, 2017 $109572786914197843527437053$
c6012
ecm
$10^{9097}+1$ 8237 Jun 7, 2016 $51568547282476093$
c8222
ecm
$10^{9104}+1$ 9088 Jun 27, 2016 $78581259493400831505601$
c9066
ecm
$10^{9106}+1$ 8737 May 30, 2016 $3731807677484186879269$
c8715
ecm
$10^{9146}+1$ 8568 Dec 26, 2017 $202315907685252434629$
c8547
ecm
$10^{9156}+1$ 5142 Jun 7, 2016 $20347986403248972291097$
c5120
ecm
$10^{9228}+1$ 6126 Jun 7, 2016 $605650066737273155737$
c6106
ecm
$10^{9235}+1$ 7361 Dec 26, 2017 $391813299907905907571$
c7340
ecm
$10^{9316}+1$ 8683 Dec 26, 2017 $4051320731018509073897$
c8661
ecm
$10^{9323}+1$ 9281 Dec 26, 2017 $4880996110490260597$
c9262
ecm
$10^{9326}+1$ 9298 Dec 26, 2017 $139879299413489772643430900129$
c9269
ecm
$10^{9346}+1$ 9302 Dec 26, 2017 $7811028982685219899469$
c9280
ecm
$10^{9356}+1$ 9348 Sep 22, 2017 $794288732466118297$
c9330
ecm
$10^{9364}+1$ 9342 Dec 26, 2017 $52623050247019299593257$
c9319
ecm
$10^{9559}+1$ 8562 Jun 7, 2016 $1949274696350314037$
c8544
ecm
$10^{9436}+1$ 8065 Dec 26, 2017 $24614388746608680653249729$
c8039
ecm
$10^{9443}+1$ 7560 Dec 26, 2017 $170919285973650921197$
c7540
ecm
$10^{9451}+1$ 8697 Dec 26, 2017 $72600130606768226047$
c8677
ecm
$10^{9454}+1$ 9047 Dec 26, 2017 $15610439843100369661$
c9028
ecm
$10^{9465}+1$ 5030 Dec 26, 2017 $892031389118253560161$
c5009
ecm
$10^{9477}+1$ 5794 Sep 29, 2017 $288908115573426092407$
c5773
ecm
$10^{9482}+1$ 8588 Dec 26, 2017 $9139738475035615129$
c8569
ecm
$10^{9572}+1$ 9530 Jun 3, 2016 $223062816398654321505930881$
c9504
ecm
$10^{9580}+1$ 7601 Dec 26, 2017 $7827794480694536081$
c7582
ecm
$10^{9594}+1$ 5752 Jun 7, 2016 $828273518588152729$
c5735
ecm
$10^{9599}+1$ 9227 Jun 7, 2016 $867079764202799040379$
c9206
ecm
$10^{9606}+1$ 6401 Sep 29, 2017 $447843700295238825289$
c6380
ecm
$10^{9609}+1$ 6400 Jun 7, 2016 $62303466087036783691$
c6380
ecm
$10^{9655}+1$ 7721 Jun 28, 2016 $6477836740165074091$
c7702
ecm
$10^{9658}+1$ 8761 Dec 26, 2017 $269766003767315807489$
c8740
ecm
$10^{9667}+1$ 8281 Jun 28, 2016 $37314120804503493077$
c8261
ecm
$10^{9684}+1$ 6420 Jun 7, 2016 $9010283662314793$
c6404
ecm
$10^{9687}+1$ 6457 Sep 29, 2017 $2355933593533240099$
c6438
ecm
$10^{9688}+1$ 8242 Sep 29, 2017 $25355734351917583489$
c8222
ecm
$10^{9717}+1$ 6240 Jun 28, 2016 $572909010632335988661649$
c6217
ecm
$10^{9724}+1$ 7680 Dec 26, 2017 $25388484488900651977$
c7661
ecm
$10^{9725}+1$ 7742 Dec 26, 2017 $10333575952217406711401$
c7720
ecm
$10^{9741}+1$ 6071 Sep 29, 2017 $2483378254350230835571$
c6049
ecm
$10^{9743}+1$ 9727 Sep 29, 2017 $18711261490180077305561$
c9705
ecm
$10^{9754}+1$ 9752 Sep 29, 2017 $6190957902160075021$
c9734
ecm
$10^{9768}+1$ 5747 Jun 9, 2016 $4698816213926086033$
c5728
ecm
$10^{9777}+1$ 6498 Jun 1, 2016 $5854359076913466867169$
c6476
ecm
$10^{9780}+1$ 5184 Dec 26, 2017 $2760448397051045016113521$
c5160
ecm
$10^{9820}+1$ 7828 Jun 9, 2016 $336482892730564961$
c7810
ecm
$10^{9836}+1$ 9783 Dec 26, 2017 $11036457934522877009$
c9764
ecm
$10^{9858}+1$ 6240 Dec 26, 2017 $7580858551347752929$
c6222
ecm
$10^{9871}+1$ 9860 Dec 26, 2017 $2150789579965065247493$
c9839
ecm
$10^{9875}+1$ 7782 Sep 29, 2017 $139238018059919322251$
c7762
ecm
$10^{9897}+1$ 6597 Jun 28, 2016 $17721007469599392061321$
c6574
ecm
$10^{9898}+1$ 8374 Sep 29, 2017 $7496860433003872421$
c8355
ecm
$10^{9979}+1$ 9360 Sep 22, 2017 $42861281544112103$
c9343
ecm
$10^{10017}+1$ 5612 Dec 25, 2017 $66676770188472784377255247$
c5586
ecm
$10^{10032}+1$ 5727 Dec 25, 2017 $821794136984243509153$
c5706
ecm
$10^{10039}+1$ 10023 Dec 25, 2017 $3150116127511755525859$
c10001
ecm
$10^{10049}+1$ 9252 Sep 29, 2017 $1401400917269970084521$
c9231
ecm
$10^{10059}+1$ 5736 Aug 23, 2016 $454377510631414072118116681$
c5710
ecm
$10^{10065}+1$ 4769 Oct 8, 2017
Dec 25, 2017
$259589083758126244321$
$12265695173169338416891$
c4726
ecm
$10^{10066}+1$ 8617 Jun 29, 2016 $47908630040564853543229$
c8594
ecm
$10^{10075}+1$ 7193 Oct 8, 2017 $1735947748208317277401$
c7172
ecm
$10^{10078}+1$ 10065 Dec 25, 2017 $8369492810648987676173089$
c10040
ecm
$10^{10081}+1$ 9459 Oct 8, 2017 $3538008964958846890819$
c9438
ecm
$10^{10085}+1$ 8041 Oct 8, 2017 $89986570136377042102531$
$98524129396198222703681$
c7996
ecm
$10^{10086}+1$ 6561 Jun 29, 2016 $179699885920646939389088480161$
c6531
ecm
$10^{10115}+1$ 6496 Sep 29, 2017 $414274740272340666685694771$
c6470
ecm
$10^{10122}+1$ 5745 Jun 2, 2016 $74622491486167655269$
c5725
ecm
$10^{10124}+1$ 10109 Dec 25, 2017 $503273419200458199521$
c10088
ecm
$10^{10126}+1$ 9818 Oct 8, 2017 $12295589182414223305349$
c9796
ecm
$10^{10137}+1$ 6446 Sep 29, 2017
Oct 8, 2017
$605875291364496459769$
105111973311564520921
c6405
ecm
$10^{10138}+1$ 9787 Sep 29, 2017 $9046819942360641786061$
c9765
ecm
$10^{10145}+1$ 8099 Jun 5, 2016 $409673091198371411$
c8081
ecm
$10^{10155}+1$ 5392 Dec 25, 2017 $55213466645715153488371$
c5369
ecm
$10^{10158}+1$ 6751 Dec 25, 2017 $1786838360858671069$
c6733
ecm
$10^{10180}+1$ 8129 Jun 29, 2016 $225587106098810666305841$
c8105
ecm
$10^{10186}+1$ 9241 Sep 29, 2017 $191269338412103659709$
c9220
ecm
$10^{10208}+1$ 8961 Jun 29, 2016 $43619052001361550209$
c8941
ecm
$10^{10216}+1$ 10196 Dec 25, 2017 $1598727601862288203217$
c10174
ecm
$10^{10225}+1$ 8133 Dec 25, 2017 $24789659859135436461401$
c8111
ecm
$10^{10231}+1$ 9433 Aug 23, 2016 $133108685951092381609$
c9412
ecm
$10^{10239}+1$ 6819 Dec 25, 2017 $2410805295540500160943$
c6798
ecm
$10^{10253}+1$ 10236 Dec 25, 2017 $238774232329829528877001$
c10213
ecm
$10^{10267}+1$ 10245 Dec 25, 2017 $369400877834471849$
c10227
ecm
$10^{10279}+1$ 9712 Sep 29, 2017 $13106746052273571493$
c9693
ecm
$10^{10284}+1$ 6815 Dec 25, 2017 $18383746181081749921$
c6796
ecm
$10^{10304}+1$ 8440 Dec 25, 2017 $7603244094757419656136961$
c8415
ecm
$10^{10309}+1$ 9330 Sep 29, 2017 $6841903189120412991371$
c9309
ecm
$10^{10332}+1$ 5760 Jun 9, 2016 $514347375199964308633$
c5740
ecm
$10^{10380}+1$ 5504 Jun 29, 2016 $2067900359561593681$
c5486
ecm
$10^{10389}+1$ 6915 Jun 10, 2016 $1609328189193435727$
c6897
ecm
$10^{10393}+1$ 9808 Dec 25, 2017 $11167388765822905279327$
c9786
ecm
$10^{10395}+1$ 4299 Sep 29, 2017 $39897046084503768931$
c4279
ecm
$10^{10411}+1$ 10025 Jun 29, 2016 $16516788702177641531$
c10005
ecm
$10^{10433}+1$ 10432 Jun 29, 2016 $60837292008397939761121$
c10410
ecm
$10^{10471}+1$ 10153 Jun 29, 2016 $59364308309814512447$
c10133
ecm
$10^{10493}+1$ 8981 Sep 29, 2017 $254197105676470699891$
c8961
ecm
$10^{10531}+1$ 10522 Jun 7, 2016 $992237582060411$
c10507
ecm
$10^{10535}+1$ 7056 Jun 29, 2016 $8442627813473045641$
c7038
ecm
$10^{10552}+1$ 10500 Jun 7, 2016 $1414560937117511969$
c10482
ecm
$10^{10562}+1$ 10533 Jun 7, 2016 $461587520869654794949$
c10512
ecm
$10^{10638}+1$ 7040 Sep 29, 2017 $637149148118611695829$
c7020
ecm
$10^{10689}+1$ 6074 Sep 29, 2017 $63934297671023203327$
$42481721128477850899$
c6035
ecm
$10^{10723}+1$ 10714 Jun 1, 2016 $72320783488624157$
c10697
ecm
$10^{10725}+1$ 4780 Sep 29, 2017 $363361766376942161401$
c4759
ecm
$10^{10743}+1$ 7156 Jun 7, 2016 $2302155196151588467018561$
c7132
ecm
$10^{10759}+1$ 8736 Aug 20, 2016 $429436598435332241528167$
c8713
ecm
$10^{10760}+1$ 8568 Jun 9, 2016 $488619677094283587361$
c8547
ecm
$10^{10767}+1$ 6885 Jun 9, 2016 $121200268613131$
c6871
ecm
$10^{10778}+1$ 10113 Jun 29, 2016 $1826212311559178210341$
c10091
ecm
$10^{10804}+1$ 10335 Jun 9, 2016 $1770989964886609$
c10320
ecm
$10^{10817}+1$ 10398 Sep 29, 2017 $822587722864434034489$
c10377
ecm
$10^{10855}+1$ 7956 Dec 30, 2017 $1284450265477803971$
c7938
ecm
$10^{10900}+1$ 8641 Aug 20, 2016 $4829562732029052401$
c8622
ecm
$10^{10931}+1$ 10251 Sep 29, 2017 $1329754646830487117$
c10233
ecm
$10^{10938}+1$ 7271 Sep 29, 2017 $5373768402042080293489$
c7249
ecm
$10^{10939}+1$ 10929 Sep 29, 2017 $7886322829901844943$
c10910
ecm
$10^{10952}+1$ 10647 Jun 10, 2016 $181529467446145418849$
c10627
ecm
$10^{10974}+1$ 6960 Jun 29, 2016 $469451257819768249$
c6943
ecm
$10^{11003}+1$ 10984 Dec 17, 2017 $239904179738520804732158771$
c10958
ecm
$10^{11006}+1$ 10981 Sep 29, 2017 $26714288163779567341$
c10962
ecm
$10^{11007}+1$ 7289 Dec 17, 2017 $58084598736152825736147877$
c7263
ecm
$10^{11016}+1$ 6905 Jun 10, 2016 $460584519480938691217$
c6885
ecm
$10^{11022}+1$ 6623 Dec 20, 2017 $39640920610683813364681$
c6600
ecm
$10^{11027}+1$ 11021 Dec 17, 2017 $2628518955543306014561$
c11000
ecm
$10^{11039}+1$ 8844 Sep 22, 2017 $3513787028861043344411$
c8822
ecm
$10^{11049}+1$ 7043 Dec 17, 2017 $30578452131328086487$
$2677419740324599997893$
c7002
ecm
$10^{11066}+1$ 10041 Jun 30, 2016 $21874136756081304476073821$
c10015
ecm
$10^{11068}+1$ 11064 Dec 17, 2017 $4673507193238566832535273$
c11040
ecm
$10^{11097}+1$ 7333 Jun 7, 2016 $8508206757542431599270703$
c7308
ecm
$10^{11098}+1$ 10681 Sep 29, 2017 $23506752288228975421289$
c10658
ecm
$10^{11108}+1$ 11085 Dec 16, 2017
Dec 21, 2017
$28955852999885815866721$
$75527371273755821513$
c11043
ecm
$10^{11187}+1$ 6703 Jun 10, 2016 $1949213813113545463$
c6685
ecm
$10^{11201}+1$ 10645 Jun 7, 2016 $139649958252093414361$
c10625
ecm
$10^{11237}+1$ 10554 Jun 9, 2016 $213334590728051538397$
c10534
ecm
$10^{11289}+1$ 7252 Sep 29, 2017 $5005427842174869943$
c7233
ecm
$10^{11308}+1$ 10219 Sep 29, 2017 $1305161332847396234057$
c10198
ecm
$10^{11333}+1$ 9699 Dec 23, 2017 $882948647005262699$
c9681
ecm
$10^{11336}+1$ 11349 Dec 16, 2017 $5577487942047813685750184641$
c11321
ecm
$10^{11369}+1$ 11349 Dec 23, 2017 $449300046060370085330448211$
c11323
ecm
$10^{11386}+1$ 11352 Sep 29, 2017 $359099861273065180981$
c11331
ecm
$10^{11397}+1$ 7280 Jun 30, 2016 $3324707041986809077$
c7262
ecm
$10^{11399}+1$ 11363 Dec 16, 2017 $7351074086912569019$
c11344
ecm
$10^{11401}+1$ 10513 Dec 23, 2017 $533490820908947181463$
c10492
ecm
$10^{11412}+1$ 7585 Jun 30, 2016 $63537232630275910081$
c7565
ecm
$10^{11423}+1$ 11417 Dec 30, 2017 $5160769322408769329837$
c11396
ecm
$10^{11429}+1$ 10365 Jun 10, 2016 $29156080125628369$
c10348
ecm
$10^{11437}+1$ 11407 Dec 20, 2017 $838948229951323423$
c11389
ecm
$10^{11446}+1$ 11137 Sep 29, 2017 $10721060899202021997289$
c11114
ecm
$10^{11454}+1$ 7193 Dec 20, 2017 $1326815121919823178889$
c7172
ecm
$10^{11479}+1$ 10585 Aug 17, 2016 $2715965909667250748197$
c10563
ecm
$10^{11495}+1$ 7920 Sep 29, 2017 $7723424900874724801$
c7902
ecm
$10^{11498}+1$ 11477 Sep 29, 2017 $72631011542671977121$
c11458
ecm
$10^{11507}+1$ 11161 Oct 3, 2016 $577771807731642268127$
c11140
ecm
$10^{11515}+1$ 7723
7703
Sep 29, 2017
Dec 23, 2017
$65428043397789939091$
$688287762304819831841$
c7683
ecm
$10^{11517}+1$ 6960 Jun 26, 2016 $490999087107388597$
c6943
ecm
$10^{11533}+1$ 10909 Jul 6, 2016 $22440120059009133139$
c10889
ecm
$10^{11539}+1$ 10481 Jun 5, 2016 $28363943296203727103$
c10461
ecm
$10^{11558}+1$ 11542 Sep 29, 2017 $277940963568115023529$
c11521
ecm
$10^{11562}+1$ 7360 Aug 12, 2016 $2643712963610437681$
c7342
ecm
$10^{11583}+1$ 6473 Sep 29, 2017 $3177008381575646047$
c6454
ecm
$10^{11594}+1$ 9594 Jun 9, 2016 $2600253936343501351409$
c9572
ecm
$10^{11602}+1$ 11527 Dec 23, 2017 $28831132202805181$
c11510
ecm
$10^{11607}+1$ 11616 Jun 9, 2016 $2547499588603462251516253$
c7450
ecm
$10^{11632}+1$ 7474 Jun 10, 2016 $5231730217904978241071809$
c11592
ecm
$10^{11645}+1$ 8660 Dec 30, 2017 $11980711046405439731$
c8641
ecm
$10^{11646}+1$ 7753 Jun 27, 2016 $18210010999837861$
c7736
ecm
$10^{11651}+1$ 11382 Jun 9, 2016 $11752123499197320700249$
c11360
ecm
$10^{11652}+1$ 7734 Jun 7, 2016 $830398437436222483897$
c7713
ecm
$10^{11655}+1$ 5172 Jun 9, 2016 $6619785801965581948291$
c5150
ecm
$10^{11657}+1$ 11641 Jun 10, 2016 $734776816229184851$
c11623
ecm
$10^{11659}+1$ 11422 Jun 2, 2016 $25738349917383373$
c11406
ecm
$10^{11673}+1$ 7770 Sep 29, 2017 $5258627673065935183$
c7751
ecm
$10^{11678}+1$ 11676 Jun 9, 2016 $32886869936818443149$
c11657
ecm
$10^{11716}+1$ 11201 Sep 29, 2017 $336312445062261712481$
c11180
ecm
$10^{11733}+1$ 7812 Jun 9, 2016 $248915991479965232893$
c7791
ecm
$10^{11735}+1$ 9375 Dec 30, 2017 $8465886187102944571$
c9356
ecm
$10^{11761}+1$ 11097 Dec 23, 2017 $45571849529430717028001$
c11074
ecm
$10^{11780}+1$ 8620 Dec 30, 2017 $12890097944142802321$
c8600
ecm
$10^{11802}+1$ 6712 Jun 9, 2016 $1767881055122104510729$
c6690
ecm
$10^{11807}+1$ 11792 Dec 20, 2017 $22776225234110610541463$
c11769
ecm
$10^{11825}+1$ 8377 Sep 29, 2017 $494410467650716251131201$
c8353
ecm
$10^{11838}+1$ 7876 Dec 30, 2017 $116377572312437940624181$
c7853
ecm
$10^{11849}+1$ 10881 Jul 6, 2016 $11095752925475302853$
PRP10861
ecm
$10^{11856}+1$ 6908 Jun 10, 2016 $55784794701689600353$
c6888
ecm
$10^{11893}+1$ 10183 Dec 16, 2017 $545094373487571503$
c10166
ecm
$10^{11898}+1$ 7900 Jun 10, 2016 $177063583636662589$
c7883
ecm
$10^{11908}+1$ 10945 Jul 6, 2016 $4804528598992721860873$
c10923
ecm
$10^{11957}+1$ 10861 Sep 29, 2017 $2424913246229175709129$
c10839
ecm
$10^{11964}+1$ 7969 Jul 6, 2016 $14185076218818293329$
c7949
ecm
$10^{12147}+1$ 8097 Jul 6, 2016 $7308541190189971$
c8081
ecm
$10^{12226}+1$ 12213 Dec 26, 2017 $321762623773184081$
c12195
ecm
$10^{12240}+1$ 6144 Jul 6, 2016 $185508956512161308161$
c6124
ecm
$10^{12265}+1$ 8880 Jul 6, 2016 $1845352481656859776921$
c8859
ecm
$10^{12317}+1$ 12090 Dec 26, 2017 $13226753906654693773$
c12071
ecm
$10^{13328}+1$ 10753 Jul 29, 2016 $105608248547086433$
c10735
ecm
$10^{13646}+1$ 13644 Jun 18, 2016 $59357403402722989$
c13628
ecm
$10^{12651}+1$ 8396 Dec 26, 2017 $16498136433872281333$
c8377
ecm
$10^{13739}+1$ 12481 Jun 18, 2016 $16008862872302709289$
c12461
ecm
$10^{15780}+1$ 8384 Jun 18, 2016 $1226000560628361841$
c8366
ecm
$10^{16117}+1$ 15821 Jun 18, 2016 $46115399108158387477$
c15801
ecm
$10^{16776}+1$ 11137 Jun 18, 2016 $16288329174178511377$
c11117
ecm
$10^{17311}+1$ 14833 Jul 29, 2016 $11309272250513280583$
c14813
ecm
$10^{25800}+1$ 13440 Jul 29, 2016 $3422882855997758401$
c13422
ecm
$10^{26134}+1$ 25633 Jul 29, 2016 $86314510654039956329$
c25613
ecm
$10^{26544}+1$ 14976 Jun 18, 2016 $4428799342072167735457$
c14955
ecm
$10^{28966}+1$ 24817 Jun 19, 2016 $1696892055398889049$
c24798
ecm
$10^{30657}+1$ 18560 Jun 23, 2016 $6789476583935726077$
c18542
ecm
$10^{32406}+1$ 19600 Jul 31, 2016 $3246401471446849$
c19585
ecm
$10^{32625}+1$ 16800 Aug 1, 2016 $5747724010314587251$
c16782
ecm
$10^{32724}+1$ 21601 Aug 1, 2016 $1419460648523150689$
PRP21582
ecm
$10^{41064}+1$ 25951 Jan 9, 2018 $112472431463485671061873$
c25928
ecm
$10^{41356}+1$ 35281 Jan 5, 2018 $2767213370435843281$
c35262
ecm
$10^{41760}+1$ 21504 Jan 5, 2018 $4061012122629855361$
c21486
ecm
$10^{50016}+1$ 33281 Dec 25, 2017 $88972022109438558913$
c33261
ecm
$10^{69583}+1$ 68951 Jan 4, 2018 $12250410795516724889$
c68931
ecm
$10^{69898}+1$ 69885 Jan 4, 2018 $714885822767850787976789$
c69861
ecm
$10^{70003}+1$ 69994 Dec 23, 2017 $2430409233792369085463$
c69973
ecm
$10^{70006}+1$ 62702 Feb 10, 2018 $413450505590394982741$
c62682
ecm
$10^{70034}+1$ 65659 Feb 4, 2018 $1056847138619336381$
c65641
ecm
$10^{70048}+1$ 63353 Feb 10, 2018 $38940078498694345464449$
c63330
ecm
$10^{70054}+1$ 70052 Feb 10, 2018 $35697807010675597180609$
c70030
ecm
$10^{70070}+1$
(M-value)
20134 Feb 10, 2018 $32805246125584632701$
c20115
ecm
$10^{70082}+1$ 68892 Feb 10, 2018 $8166007902654592072109$
c68870
ecm
$10^{70096}+1$ 64513 Feb 10, 2018 $798375771691615624417$
c64492
ecm
$10^{70110}+1$
(L-value)
17217 Feb 10, 2018 $3737155449125774701$
c17198
ecm
$10^{70114}+1$ 63705 Feb 4, 2018
Feb 10, 2018
$100516133753867218729$
c63685
ecm
$10^{70117}+1$ 70109 Feb 4, 2018 $1590643828139235979$
c70091
ecm
$10^{70123}+1$ 70106 Feb 10, 2018 $8300863170079700491331$
c70084
ecm
$10^{70141}+1$ 70140 Feb 10, 2018 $6521907384452292611$
c70122
ecm
$10^{70209}+1$ 45019 Feb 10, 2018 $22287898145363623921$
c45000
ecm
$10^{70218}+1$ 45264 Feb 10, 2018 $2549004621051752569$
c45246
ecm
$10^{70267}+1$ 67792 Feb 10, 2018 $92266866563359039117$
c67772
ecm
$10^{70271}+1$ 70265 Feb 10, 2018 $2396656079289009613$
c70246
ecm
$10^{70324}+1$ 70320 Feb 10, 2018 $75115751192586008617$
c70301
ecm
$10^{70360}+1$ 56228 Feb 4, 2018
Feb 10, 2018
$1505029407116814721$
c56210
ecm
$10^{70370}+1$
(L-value)
27105 Feb 10, 2018 $926893007835606043781$
c27084
ecm
$10^{70373}+1$ 70372 Feb 10, 2018 $99658521906640714877$
c70352
ecm
$10^{70400}+1$ 51181 Feb 4, 2018 $17869477866758425601$
c51162
ecm
$10^{70432}+1$ 67201 Feb 10, 2018 $11898832954679173249$
c67181
ecm
$10^{70445}+1$ 55285 Feb 10, 2018 $175539457972623352691$
c55265
ecm
$10^{70466}+1$ 64020 Feb 10, 2018 $11093213746354870681$
c64001
ecm
$10^{70546}+1$ 60435 Feb 10, 2018 $170010052467594090702581$
c60412
ecm
$10^{70556}+1$ 68161 Feb 10, 2018 $640544935834328651281$
c68140
ecm
$10^{70625}+1$ 55992 Feb 10, 2018 $113756091655517076251$
c55972
ecm
$10^{70637}+1$ 60480 Feb 10,2018 $3759931377610641024863$
c60459
ecm
$10^{70658}+1$ 59977 Feb 10, 2018 $10741179025004042861$
c59957
ecm
$10^{70685}+1$ 55432 Feb 10, 2018 $185180651733054569289121$
c55409
ecm
$10^{70699}+1$ 65862 Feb 10, 2018 $4747671947885580499$
c65844
ecm
$10^{70708}+1$ 64232 Feb 10, 2018 $1489710799991977817$
c64214
ecm
$10^{70726}+1$ 70705 Feb 10, 2018 $112502062769658437809$
$154820539679873867369$
c70665
ecm
$10^{70750}+1$
(M-value)
28168 Feb 10, 2018 $5672941094114240501$
c28149
ecm
$10^{70777}+1$ 60661 Feb 10, 2018 $711970359471072963367$
c60640
ecm
$10^{70792}+1$ 70784 Feb 10, 2018 $5104568856856318417$
c70766
ecm
$10^{70799}+1$ 69865 Feb 4, 2018 $2396460434295112499$
c69846
ecm
$10^{70825}+1$ 56630 Feb 10, 2018 $6877672022991898786859801$
c56606
ecm
$10^{70837}+1$ 65377 Feb 10, 2018 $1171504298446466401$
c65358
ecm
$10^{70862}+1$ 64390 Feb 4, 2018 $10516707852896081$
c64374
ecm
$10^{70864}+1$ 68514 Feb 10, 2018 $27020335080164161409$
c68494
ecm
$10^{70865}+1$ 56672 Feb 4, 2018 $796884109151971$
c56657
ecm
$10^{70867}+1$ 70856 Feb 4, 2018 $668853449043011$
c70841
ecm
$10^{70898}+1$ 70896 Feb 10, 2018 $2000017926529111681$
c70878
ecm
$10^{70900}+1$ 56634 Feb 10, 2018 $5227768259761538401$
c56615
ecm
$10^{70987}+1$ 60841 Feb 10, 2018 $37812203454968295277$
c60821
ecm
$10^{89137}+1$ 89136 Aug 8, 2016 $1110522528697584757$
c89118
ecm
$10^{89241}+1$ 58800 Aug 8, 2016 $1682036963630045779$
c58782
ecm
$10^{93857}+1$ 88321 Aug 10, 2016 $67837237916801029830721$
c88298
ecm
$10^{94651}+1$ 94650 Aug 10, 2016 $20596619496648331327$
c94631
ecm
$10^{95846}+1$ 90177 Jul 31, 2016 $13522908170366153969$
c90157
ecm
$10^{96324}+1$ 61248 Jul 29, 2016 $1054864123367979889$
c61230
ecm

Related Links

Last update: April 9, 2018