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
100242643Factored
FactorDigitsBitsDate
250838622854407587117060421720931101.02020-09-22 02:03:36
P-1 factors
DateFactorB1B2
2020-09-22250838622854407587117060421720972200019514000
History
DateUserTypeResult
2020-09-22Jwb52zF-PM1
Factor: 2508386228544075871170604217209 / (P-1, B1=722000, B2=19514000)
2020-07-19penluNF
no factor from 2^75 to 2^76
2020-06-17lobsterfordinnerNF
no factor from 2^74 to 2^75
2020-02-25ixfd64NF
no factor from 2^73 to 2^74
2020-02-10bayanneNF
no factor from 2^72 to 2^73
2014-12-23workerthreadNF
no factor from 2^71 to 2^72
2014-07-28HinespNF
no factor from 2^70 to 2^71
2014-07-24HinespNF
no factor from 2^69 to 2^70
2014-05-22SMoffatNF
no factor from 2^68 to 2^69
2013-09-21processinfoNF
no factor from 2^67 to 2^68
2011-03-10Craig MeyersNF
no factor from 2^66 to 2^67
2011-02-06Craig MeyersNF
no factor from 2^65 to 2^66
2010-08-09Torchwood InstituteNF
no factor from 2^64 to 2^65
2010-01-031997rj7NF
no factor from 2^63 to 2^64