Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
29012587Factored
FactorDigitsBitsDate
1019445344982940583566312476.42021-11-24 18:51:48
ECM
DigitsB1Curves
255000012 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2005-11-27Federico Coletti - lapF1093DCB8F62BA9311488647
Bad2013-03-17-Anonymous-3B2F59D8FA93624D14967960
Verified (Factored)2013-03-27ChuckF1093DCB8F62BA935016643
History
DateUserTypeResult
2021-11-24ATHF-PP1
Start=2/7, B1=1000000, B2=26000000, Factor: 101944534498294058356631
2021-10-06TheJudgerNF
no factor from 2^74 to 2^75
2021-09-10TheJudgerNF
no factor from 2^73 to 2^74
2021-01-04Sid & AndyNF
no factor from 2^72 to 2^73
2020-08-06Sid & AndyNF
no factor from 2^71 to 2^72
2020-08-06Sid & AndyNF
no factor from 2^70 to 2^71
2013-03-27ChuckC-LL
F1093DCB8F62BA93
2013-03-17-Anonymous-C-LL
3B2F59D8FA93624D
2012-02-21Ethan O'ConnorNF
no factor from 2^69 to 2^70
2012-02-21Ethan O'ConnorNF
no factor from 2^68 to 2^69
2009-04-11S485122NF
no factor from 2^67 to 2^68
2009-04-11S485122NF
no factor from 2^66 to 2^67