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
75331987Factored
FactorDigitsBitsDate
987436592907165020334146332686.42016-02-17 23:10:55
P-1 factors
DateFactorB1B2
2016-02-179874365929071650203341463363000012600000
History
DateUserTypeResult
2022-06-27LordJuliusNF
no factor from 2^63 to 2^64
2016-02-17KishF-PM1
Factor: 98743659290716502033414633 / (P-1, B1=630000, B2=12600000, E=6)
2016-01-31TheJudgerNF
no factor from 2^74 to 2^75
2016-01-31TheJudgerNF
no factor from 2^73 to 2^74
2016-01-26Matthias WurtingerNF
no factor from 2^72 to 2^73
2015-09-03Judge HaleNF
no factor from 2^71 to 2^72
2014-08-05SMoffatNF
no factor from 2^70 to 2^71
2012-12-10Per JessenNF
no factor from 2^69 to 2^70
2010-12-18arnaudNF
no factor from 2^68 to 2^69
2010-12-12oilwarzonedotcomNF
no factor from 2^67 to 2^68
2010-12-08eon_blue_apocalypseNF
no factor from 2^66 to 2^67
2010-12-05eon_blue_apocalypseNF
no factor from 2^65 to 2^66
2010-10-03XyzzyNF
no factor from 2^64 to 2^65