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

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MnStatusDetails
116814977Factored
FactorDigitsBitsDate
19619972696954509121887756492890.72022-11-07 23:36:47
P-1 factors
DateFactorB1B2
2022-11-071961997269695450912188775649567000567000
History
DateUserTypeResult
2022-11-07ky0urakuF-PM1
Factor: 1961997269695450912188775649 / (P-1, B1=567000)
2021-11-18burkhajoNF
no factor from 2^76 to 2^77
2021-06-13TheJudgerNF
no factor from 2^75 to 2^76
2021-06-13TheJudgerNF
no factor from 2^74 to 2^75
2021-02-25Richard ThomasNF
no factor from 2^73 to 2^74
2020-04-26SRBaseNF
no factor from 2^72 to 2^73
2015-04-08arnaudNF
no factor from 2^71 to 2^72
2015-03-22bunddogNF
no factor from 2^70 to 2^71
2014-11-09La GüiraNF
no factor from 2^69 to 2^70
2014-11-09La GüiraNF
no factor from 2^68 to 2^69
2014-11-09La GüiraNF
no factor from 2^66 to 2^68
2012-07-06AntonNF
no factor from 2^65 to 2^66
2010-10-11abcNF
no factor from 2^64 to 2^65
2010-05-10carlos56NF
no factor from 2^63 to 2^64