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

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MnStatusDetails
85581401Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
401278951784000981897603832685.12018-05-10 16:43:37
P-1 factors
DateFactorB1B2
2018-05-10401278951784000981897603837800000
History
DateUserTypeResult
2018-05-10YxinityF-PM1
Factor: 40127895178400098189760383 / (P-1, B1=780000)
2017-09-24TheJudgerNF
no factor from 2^75 to 2^76
2017-09-20Brian BeuningNF
no factor from 2^74 to 2^75
2017-04-17-Anonymous-NF
no factor from 2^73 to 2^74
2017-02-28Judge HaleNF
no factor from 2^72 to 2^73
2017-02-28Judge HaleNF
no factor from 2^71 to 2^72
2014-08-17Ryan PropperNF
no factor from 2^70 to 2^71
2013-03-15frmarNF
no factor from 2^69 to 2^70
2013-03-06-Anonymous-NF
no factor from 2^68 to 2^69
2013-03-05SMoffatNF
no factor from 2^67 to 2^68
2013-03-05SMoffatNF
no factor from 2^66 to 2^67
2013-03-04wangyun183NF
no factor from 2^65 to 2^66
2010-11-27Architects CubedNF
no factor from 2^64 to 2^65