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

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MnStatusDetails
85616059Factored
FactorDigitsBitsDate
609217789513602481984538872685.72018-01-22 08:34:32
P-1 factors
DateFactorB1B2
2018-01-226092177895136024819845388769000013627500
History
DateUserTypeResult
2018-01-22Oliver KruseF-PM1
Factor: 60921778951360248198453887 / (P-1, B1=690000, B2=13627500, E=12)
2017-10-01TheJudgerNF
no factor from 2^75 to 2^76
2017-09-27Brian BeuningNF
no factor from 2^74 to 2^75
2017-04-28-Anonymous-NF
no factor from 2^73 to 2^74
2017-03-10garoNF
no factor from 2^72 to 2^73
2017-03-10garoNF
no factor from 2^71 to 2^72
2014-08-27HBendtzNF
no factor from 2^70 to 2^71
2014-02-25StevenPGreenNF
no factor from 2^69 to 2^70
2013-08-19ebravickNF
no factor from 2^68 to 2^69
2013-02-26Todd WalkeNF
no factor from 2^67 to 2^68
2013-02-24Todd WalkeNF
no factor from 2^66 to 2^67
2012-08-23america64NF
no factor from 2^65 to 2^66
2010-11-27Architects CubedNF
no factor from 2^64 to 2^65