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

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MnStatusDetails
89143981Factored
FactorDigitsBitsDate
6286734860952218931097372479.12018-10-20 05:57:54
P-1 factors
DateFactorB1B2
2018-10-2062867348609522189310973772500014318750
History
DateUserTypeResult
2018-10-20Oliver KruseF-PM1
Factor: 628673486095221893109737 / (P-1, B1=725000, B2=14318750, E=12)
2018-09-24William F. Garnett IIINF
no factor from 2^75 to 2^76
2018-09-24William F. Garnett IIINF
no factor from 2^74 to 2^75
2017-08-20-Anonymous-NF
no factor from 2^73 to 2^74
2017-08-20-Anonymous-NF
no factor from 2^72 to 2^73
2017-06-22monstNF
no factor from 2^71 to 2^72
2014-09-14Meral HarbesNF
no factor from 2^70 to 2^71
2014-04-05hkskypNF
no factor from 2^69 to 2^70
2014-04-05SMoffatNF
no factor from 2^68 to 2^69
2014-02-02SMoffatNF
no factor from 2^67 to 2^68
2014-01-31SMoffatNF
no factor from 2^66 to 2^67
2013-06-22David CampeauNF
no factor from 2^65 to 2^66
2010-11-07Architects CubedNF
no factor from 2^64 to 2^65