Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
83243827Factored
FactorDigitsBitsDate
768715491894899415609912376.02017-08-21 07:32:10
P-1 factors
DateFactorB1B2
2017-08-21768715491894899415609916600000
History
DateUserTypeResult
2017-08-21bamF-PM1
Factor: 76871549189489941560991 / (P-1, B1=660000)
2017-02-19TheJudgerNF
no factor from 2^75 to 2^76
2016-12-23-Anonymous-NF
no factor from 2^74 to 2^75
2016-12-23-Anonymous-NF
no factor from 2^73 to 2^74
2016-12-23-Anonymous-NF
no factor from 2^72 to 2^73
2016-12-23-Anonymous-NF
no factor from 2^71 to 2^72
2013-11-14g0bNF
no factor from 2^70 to 2^71
2013-02-25MomerathNF
no factor from 2^69 to 2^70
2013-02-25MomerathNF
no factor from 2^68 to 2^69
2013-02-25MomerathNF
no factor from 2^67 to 2^68
2013-02-10GrunwalderGIMPNF
no factor from 2^66 to 2^67
2012-09-12Carsten KossendeyNF
no factor from 2^65 to 2^66
2010-12-06Architects CubedNF
no factor from 2^64 to 2^65