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
89282807Factored
FactorDigitsBitsDate
8514481731821515822540812479.52019-01-24 22:49:08
P-1 factors
DateFactorB1B2
2019-01-24851448173182151582254081785000785000
2019-02-048514481731821515822540817250000
History
DateUserTypeResult
2019-02-04treborF-PM1
Factor: 851448173182151582254081 / (P-1, B1=725000)
2019-01-24penluF-PM1
Factor: 851448173182151582254081 / (P-1, B1=785000, B2=785000, e=12, n=5184K CUDAPm1 v0.20)
2018-10-07TheJudgerNF
no factor from 2^75 to 2^76
2018-10-07TheJudgerNF
no factor from 2^74 to 2^75
2017-09-08Brian BeuningNF
no factor from 2^73 to 2^74
2017-09-051997rj7NF
no factor from 2^72 to 2^73
2017-07-11monstNF
no factor from 2^71 to 2^72
2013-09-22SMoffatNF
no factor from 2^70 to 2^71
2013-03-19Le ComteNF
no factor from 2^65 to 2^70
2010-11-09Architects CubedNF
no factor from 2^64 to 2^65