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

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MnStatusDetails
90088513Factored
FactorDigitsBitsDate
42748571062904308009211221455197068136118.42019-01-04 07:27:09
P-1 factors
DateFactorB1B2
2019-01-0442748571062904308009211221455197068174000014985000
History
DateUserTypeResult
2019-01-04MersenneMarconiF-PM1
Factor: 427485710629043080092112214551970681 / (P-1, B1=740000, B2=14985000, E=12)
2018-11-25TheJudgerNF
no factor from 2^75 to 2^76
2018-11-25TheJudgerNF
no factor from 2^74 to 2^75
2018-03-04c10ck3rNF-PM1
B1=10000
2017-11-21Carsten KossendeyNF
no factor from 2^73 to 2^74
2016-07-23Carsten KossendeyNF
no factor from 2^72 to 2^73
2015-01-19Carsten KossendeyNF
no factor from 2^71 to 2^72
2015-01-06JakeWNF
no factor from 2^70 to 2^71
2013-11-15Carsten KossendeyNF
no factor from 2^69 to 2^70
2013-06-22Carsten KossendeyNF
no factor from 2^68 to 2^69
2011-08-25Carsten KossendeyNF
no factor from 2^67 to 2^68
2010-10-31Carsten KossendeyNF
no factor from 2^66 to 2^67
2010-01-21Carsten KossendeyNF
no factor from 2^65 to 2^66