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
86281199Factored
FactorDigitsBitsDate
9722081147375791850116812479.72018-05-04 11:56:30
P-1 factors
DateFactorB1B2
2018-05-0497220811473757918501168170000013825000
History
DateUserTypeResult
2018-05-04jackwingF-PM1
Factor: 972208114737579185011681 / (P-1, B1=700000, B2=13825000, E=12)
2018-01-28TheJudgerNF
no factor from 2^75 to 2^76
2017-12-27Brian BeuningNF
no factor from 2^74 to 2^75
2017-05-26-Anonymous-NF
no factor from 2^73 to 2^74
2014-01-21ramgeisNF
no factor from 2^72 to 2^73
2014-01-21ramgeisNF
no factor from 2^71 to 2^72
2014-01-21ramgeisNF
no factor from 2^70 to 2^71
2013-03-09SMoffatNF
no factor from 2^69 to 2^70
2013-03-09SMoffatNF
no factor from 2^68 to 2^69
2013-03-08wangyun183NF
no factor from 2^67 to 2^68
2013-03-01Freaks32NF
no factor from 2^66 to 2^67
2010-11-29Michael CNF
no factor from 2^65 to 2^66
2010-11-29Michael CNF
no factor from 2^64 to 2^65
2010-11-21Architects CubedNF
no factor from 2^64 to 2^65