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

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MnStatusDetails
90671533Factored
FactorDigitsBitsDate
2616487963692845305477672477.82019-02-21 23:52:50
P-1 factors
DateFactorB1B2
2019-02-2126164879636928453054776769500013031250
History
DateUserTypeResult
2019-02-21ky0urakuF-PM1
Factor: 261648796369284530547767 / (P-1, B1=695000, B2=13031250, E=6)
2019-01-27TheJudgerNF
no factor from 2^76 to 2^77
2018-11-28Strolling JellyfishNF
no factor from 2^75 to 2^76
2018-11-28Strolling JellyfishNF
no factor from 2^74 to 2^75
2018-11-16Tim SorberaNF
no factor from 2^73 to 2^74
2018-03-19c10ck3rNF-PM1
B1=10000
2017-05-16Carsten KossendeyNF
no factor from 2^72 to 2^73
2016-04-01Carsten KossendeyNF
no factor from 2^71 to 2^72
2014-11-19shaugeNF
no factor from 2^70 to 2^71
2014-04-03MadPooNF
no factor from 2^69 to 2^70
2011-06-27Carsten KossendeyNF
no factor from 2^68 to 2^69
2011-01-03Carsten KossendeyNF
no factor from 2^67 to 2^68
2010-11-27Carsten KossendeyNF
no factor from 2^66 to 2^67
2010-08-09Carsten KossendeyNF
no factor from 2^65 to 2^66
2010-04-16Carsten KossendeyNF
no factor from 2^64 to 2^65