# News

• Nov 20, 2017
Status report on $(10^{279}-31)/3$
• ecm: 1408 curves with B1 = 1e7, 2e7, 3e7, 4e7, 5e7, 6e7, 7e7, 8e7, 9e7, 10e7, 11e7, 12e7, 13e7 (each).
• nfs: 144.093.504 unique relations, 287.693.283 ideals with $\frac{\Delta r}{\Delta i} = 0.7966.$
• Sieving.

• Nov 3, 2017
$377659045698120991814418877959941381$ is a 36-digit factor of $10^{3010}+1$.

• Oct 23, 2017
Status report on the 185-digit cofactor of $10^{810}+1$.
• Found a polynomial with Murphy-E = 3.597e-014.
• Test sieving.
• Pausing.
• Reserved by Yousuke Koide ?!

• Oct 20, 2017
3 factors of $z^{41}-1$ ($z \le 10000$).
Reported to fb Feb/Mar 2017.

• Oct 18, 2017
1 factor of $10^{1695}+1$.

• Oct 15, 2017
2 factors of $10^{n}+1$ ($3210\le n \le 3870$).

• Oct 14, 2017
7 factors of $10^{n}+1$ ($2170\le n \le 9950$).

• Oct 8, 2017
9 smaller factors of $10^n+1$ ($9641 \le n \le 10137$).

• Oct 6, 2017
$(7\cdot10^{275}-27\cdot10^{137}-7)/9$ is completely factored (snfs).
$(7\cdot10^{275}-27\cdot10^{137}-7)/9 = \text{P65}\cdot\text{P76}\cdot\text{P135}$.
This factorization is my hardest one - so far.

• Oct 1, 2017
15 smaller factors of $10^n+1$ ($8061 \le n \le 8999$).

• Oct 1, 2017
$567661^{41}-1$ is completely factored (snfs).

• Sep 30, 2017
19 smaller factors of $10^n+1$ ($8237 \le n \le 8982$).

• Sep 30, 2017
$6613^{41}-1$ is completely factored (snfs).

• Sep 29, 2017
76 smaller factors of $10^n+1$ ($3676 \le n \le 11957$).

• Sep 22, 2017
7 smaller factors of $10^n+1$ ($6349 \le n \le 11039$).

• Sep 9, 2017
$9996^{41}-1$ is factored.

# Efforts (ECM)

 number digits date curves B1 $10^{311}+1$ 223 Nov 19, 2017 96 1e8 $10^{295}-91$ 253 May 26, 2016 612 43e6 $500249^{41}-1$ 228 May 17, 2016 1408 1e7 $10^{295}+9$ 296 May 16, 2016 1408 43e6 $10^{271}+3$ 267 May 23, 2016May 25, 2016 34561408 11e643e6 $10^{2189}+1$ 1981 Jun 3, 2016 120 6e6 $(7\cdot10^{275}-27\cdot10^{137}-7)/9$ 275 Nov 1, 2016Apr 11, 2017 1689619712 11e726e7

# Efforts (P-1)

 number digits date B1 B2 $(7\cdot10^{275}-27\cdot10^{137}-7)/9$ 275 Oct 29, 2016 1e12 1e16