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

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MnStatusDetails
102671447Factored
FactorDigitsBitsDate
319914589067719960498319772684.72021-02-16 03:41:13
P-1 factors
DateFactorB1B2
2021-02-163199145890677199604983197785500017955000
History
DateUserTypeResult
2021-02-16Ben DeloF-PM1
Factor: 31991458906771996049831977 / (P-1, B1=855000, B2=17955000, E=12)
2020-11-15TheJudgerNF
no factor from 2^75 to 2^76
2020-11-15TheJudgerNF
no factor from 2^74 to 2^75
2020-03-30SRBaseNF
no factor from 2^73 to 2^74
2020-02-26el groccoNF
no factor from 2^72 to 2^73
2014-12-12shaugeNF
no factor from 2^71 to 2^72
2013-09-12RobishNF
no factor from 2^70 to 2^71
2013-09-10RobishNF
no factor from 2^69 to 2^70
2013-09-08RobishNF
no factor from 2^68 to 2^69
2013-09-07RobishNF
no factor from 2^67 to 2^68
2013-09-06processinfoNF
no factor from 2^66 to 2^67
2012-04-24Le ComteNF
no factor from 2^65 to 2^66
2010-08-19ANONYMOUSNF
no factor from 2^64 to 2^65
2010-05-161997rj7NF
no factor from 2^63 to 2^64