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
81061703Factored
FactorDigitsBitsDate
4879044082701464895437932478.72017-07-21 13:00:57
P-1 factors
DateFactorB1B2
2017-07-2148790440827014648954379369000013972500
History
DateUserTypeResult
2017-07-21Oliver KruseF-PM1
Factor: 487904408270146489543793 / (P-1, B1=690000, B2=13972500, E=12)
2016-10-30TheJudgerNF
no factor from 2^74 to 2^75
2016-10-30TheJudgerNF
no factor from 2^73 to 2^74
2016-10-10Judge HaleNF
no factor from 2^72 to 2^73
2014-01-13SMoffatNF
no factor from 2^71 to 2^72
2013-06-05processinfoNF
no factor from 2^70 to 2^71
2013-02-08Charles A. MorrisNF
no factor from 2^69 to 2^70
2013-02-05Smok_bmv NF
no factor from 2^68 to 2^69
2013-02-04Smok_bmv NF
no factor from 2^67 to 2^68
2013-01-30oilwarzonedotcomNF
no factor from 2^66 to 2^67
2011-02-13LingUaanNF
no factor from 2^65 to 2^66
2010-12-01Architects CubedNF
no factor from 2^64 to 2^65