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

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MnStatusDetails
102775223Factored
FactorDigitsBitsDate
16632078311139004448241372580.52021-02-23 20:07:58
P-1 factors
DateFactorB1B2
2021-02-23166320783111390044482413785500017955000
History
DateUserTypeResult
2021-02-23Ben DeloF-PM1
Factor: 1663207831113900444824137 / (P-1, B1=855000, B2=17955000, E=12)
2020-11-29DRobinsonPENF
no factor from 2^75 to 2^76
2020-11-18Architects CubedNF
no factor from 2^74 to 2^75
2020-03-31SRBaseNF
no factor from 2^73 to 2^74
2020-02-20el groccoNF
no factor from 2^72 to 2^73
2014-12-13Ilya AlexandrovNF
no factor from 2^71 to 2^72
2014-10-20PascalBieriNF
no factor from 2^70 to 2^71
2014-05-19g0bNF
no factor from 2^69 to 2^70
2014-05-06g0bNF
no factor from 2^68 to 2^69
2013-12-23ANONYMOUSNF
no factor from 2^67 to 2^68
2013-09-04JoDuNF
no factor from 2^66 to 2^67
2012-04-25Torchwood InstituteNF
no factor from 2^65 to 2^66
2010-08-25RichardNF
no factor from 2^64 to 2^65
2010-04-301997rj7NF
no factor from 2^63 to 2^64