Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
93726047Factored
FactorDigitsBitsDate
1220893999638236555056671175525422256938123.22019-09-09 09:59:14
P-1 factors
DateFactorB1B2
2019-09-091220893999638236555056671175525422256972000013860000
History
DateUserTypeResult
2019-10-01Johan ViljoenNF
no factor from 2^74 to 2^75
2019-09-09Ryan PropperF-PM1
Factor: 12208939996382365550566711755254222569 / (P-1, B1=720000, B2=13860000, E=6)
2019-09-08TheJudgerNF
no factor from 2^76 to 2^77
2019-09-08TheJudgerNF
no factor from 2^75 to 2^76
2019-09-08TheJudgerNF
no factor from 2^74 to 2^75
2019-06-06gcardonaNF
no factor from 2^73 to 2^74
2018-09-06FredrikNF
no factor from 2^72 to 2^73
2018-09-06FredrikNF
no factor from 2^71 to 2^72
2014-12-21Preben SNF
no factor from 2^70 to 2^71
2014-02-21Marius ZensNF
no factor from 2^69 to 2^70
2014-02-15Marius ZensNF
no factor from 2^68 to 2^69
2014-02-10dufrenbkNF
no factor from 2^67 to 2^68
2013-12-27sasakiNF
no factor from 2^65 to 2^67
2011-01-09Architects CubedNF
no factor from 2^64 to 2^65