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

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MnStatusDetails
97898477Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
87115155834711657975613992582.82020-04-23 02:03:42
P-1 factors
DateFactorB1B2
2020-04-23871151558347116579756139976000015010000
History
DateUserTypeResult
2020-04-23ky0urakuF-PM1
Factor: 8711515583471165797561399 / (P-1, B1=760000, B2=15010000, E=12)
2020-02-02TheJudgerNF
no factor from 2^76 to 2^77
2020-01-22TheJudgerNF
no factor from 2^75 to 2^76
2020-01-22TheJudgerNF
no factor from 2^74 to 2^75
2019-11-06Yves de WandelaarNF
no factor from 2^73 to 2^74
2019-03-11Niels_Mache_NextcloudNF
no factor from 2^72 to 2^73
2018-12-30Niels_Mache_NextcloudNF
no factor from 2^71 to 2^72
2014-07-24SMoffatNF
no factor from 2^70 to 2^71
2014-05-22SatanNF
no factor from 2^69 to 2^70
2014-05-22SatanNF
no factor from 2^68 to 2^69
2014-03-22Andreas_TruetschNF
no factor from 2^67 to 2^68
2014-02-09sasakiNF
no factor from 2^65 to 2^67
2011-01-18Architects CubedNF
no factor from 2^64 to 2^65