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

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MnStatusDetails
121227863Factored
FactorDigitsBitsDate
3873000752920633473391372478.42024-01-24 21:32:33
P-1 factors
DateFactorB1B2
2024-01-24387300075292063347339137936000936000
History
DateUserTypeResult
2024-01-24Dmitry BolshakovF-PM1
Factor: 387300075292063347339137 / (P-1, B1=936000)
2022-06-22TheJudgerNF
no factor from 2^76 to 2^77
2021-08-121997rj7NF
no factor from 2^75 to 2^76
2021-08-05Andrew BNF
no factor from 2^74 to 2^75
2021-07-06SRBaseNF
no factor from 2^73 to 2^74
2020-10-28SRBaseNF
no factor from 2^72 to 2^73
2015-11-23ANONYMOUSNF
no factor from 2^71 to 2^72
2015-10-19Smok_bmv NF
no factor from 2^70 to 2^71
2013-11-10GrunwalderGIMPNF
no factor from 2^69 to 2^70
2013-11-10GrunwalderGIMPNF
no factor from 2^68 to 2^69
2013-11-10GrunwalderGIMPNF
no factor from 2^66 to 2^68
2012-08-12GornostaevNF
no factor from 2^65 to 2^66
2010-10-21sasaki3NF
no factor from 2^64 to 2^65
2010-05-18sasaki3NF
no factor from 2^63 to 2^64