Resuming ECM residue saved by Agando@AR-32GB with GMP-ECM 7.0.4-dev on Fri Feb 24 20:22:41 2017 
Input number is (7467^41-1)/7466 (155 digits)
Using B1=3000000-3000000, B2=5706890290, polynomial Dickson(6), sigma=3:546215181
Step 1 took 0ms
Step 2 took 2359ms
********** Factor found in step 2: 1377540386623833291871555744648368719927
Found probable prime factor of 40 digits: 1377540386623833291871555744648368719927
Probable prime cofactor ((7467^41-1)/7466)/1377540386623833291871555744648368719927 has 116 digits