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

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MnStatusDetails
86521871Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2306298125016771160166161992787.62018-03-21 05:01:35
P-1 factors
DateFactorB1B2
2018-03-2123062981250167711601661619971500012870000
History
DateUserTypeResult
2018-03-21Smok_bmv F-PM1
Factor: 230629812501677116016616199 / (P-1, B1=715000, B2=12870000)
2018-02-18TheJudgerNF
no factor from 2^75 to 2^76
2018-02-09The MawnNF
no factor from 2^74 to 2^75
2017-05-25-Anonymous-NF
no factor from 2^73 to 2^74
2013-03-28tomfrNF
no factor from 2^72 to 2^73
2013-03-28tomfrNF
no factor from 2^71 to 2^72
2013-03-28tomfrNF
no factor from 2^70 to 2^71
2013-03-28tomfrNF
no factor from 2^69 to 2^70
2013-03-28tomfrNF
no factor from 2^68 to 2^69
2013-03-28tomfrNF
no factor from 2^67 to 2^68
2013-03-19wangyun183NF
no factor from 2^66 to 2^67
2011-02-03Michael CNF
no factor from 2^65 to 2^66
2010-11-22Architects CubedNF
no factor from 2^64 to 2^65