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
85439533Factored
FactorDigitsBitsDate
4223565762206393249185177692788.42018-01-08 23:35:59
P-1 factors
DateFactorB1B2
2018-01-0842235657622063932491851776967500012150000
History
DateUserTypeResult
2018-01-08Smok_bmv F-PM1
Factor: 422356576220639324918517769 / (P-1, B1=675000, B2=12150000)
2017-08-27TheJudgerNF
no factor from 2^75 to 2^76
2017-08-27TheJudgerNF
no factor from 2^74 to 2^75
2017-04-20-Anonymous-NF
no factor from 2^73 to 2^74
2017-02-20Judge HaleNF
no factor from 2^72 to 2^73
2017-02-20Judge HaleNF
no factor from 2^71 to 2^72
2014-08-19ANONYMOUSNF
no factor from 2^70 to 2^71
2014-02-10GrunwalderGIMPNF
no factor from 2^69 to 2^70
2013-03-13SavatoNF
no factor from 2^68 to 2^69
2013-03-12SavatoNF
no factor from 2^67 to 2^68
2013-03-09timc995NF
no factor from 2^66 to 2^67
2013-03-08Freaks32NF
no factor from 2^65 to 2^66
2010-11-26Architects CubedNF
no factor from 2^64 to 2^65