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

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MnStatusDetails
83876783Factored
FactorDigitsBitsDate
671651979185564470128792232685.82017-09-29 11:26:38
P-1 factors
DateFactorB1B2
2017-09-29671651979185564470128792236700000
History
DateUserTypeResult
2017-09-29Oliver KruseF-PM1
Factor: 67165197918556447012879223 / (P-1, B1=670000)
2017-03-26TheJudgerNF
no factor from 2^75 to 2^76
2017-02-06Brian BeuningNF
no factor from 2^74 to 2^75
2017-02-03-Anonymous-NF
no factor from 2^73 to 2^74
2017-02-03-Anonymous-NF
no factor from 2^72 to 2^73
2017-02-03-Anonymous-NF
no factor from 2^71 to 2^72
2013-07-24willmoreNF
no factor from 2^70 to 2^71
2013-06-17frmarNF
no factor from 2^69 to 2^70
2013-06-14frmarNF
no factor from 2^68 to 2^69
2013-06-13GrunwalderGIMPNF
no factor from 2^67 to 2^68
2013-02-18SMoffatNF
no factor from 2^66 to 2^67
2012-08-17Carsten KossendeyNF
no factor from 2^65 to 2^66
2010-12-21Architects CubedNF
no factor from 2^64 to 2^65