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

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MnStatusDetails
72162049Factored
FactorDigitsBitsDate
1635178813129400807650492477.12015-08-07 04:23:35
P-1 factors
DateFactorB1B2
2015-08-071635178813129400807650496150000
History
DateUserTypeResult
2015-08-07Jwb52zF-PM1
Factor: 163517881312940080765049 / (P-1, B1=615000)
2015-08-06ChuckNF
no factor from 2^74 to 2^75
2014-08-20Jerry HallettNF
no factor from 2^73 to 2^74
2014-08-20Jerry HallettNF
no factor from 2^72 to 2^73
2014-08-20Jerry HallettNF
no factor from 2^71 to 2^72
2013-04-15PEDNF
no factor from 2^70 to 2^71
2010-05-13ANONYMOUSNF
no factor to 2^70
2008-09-19Wojciech FlorekNF
no factor to 2^64