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
61761811Factored
FactorDigitsBitsDate
6641462894302689167634732479.12013-05-02 08:14:42
P-1 factors
DateFactorB1B2
2013-05-026641462894302689167634735800000
History
DateUserTypeResult
2022-03-29LordJuliusNF
no factor from 2^62 to 2^63
2013-05-02Jwb52zF-PM1
Factor: 664146289430268916763473
2013-02-24TheJudgerNF
no factor from 2^72 to 2^73
2013-02-11Luigi MorelliNF
no factor from 2^71 to 2^72
2013-02-04XyzzyNF
no factor from 2^70 to 2^71
2011-12-01-Anonymous-NF
no factor from 2^69 to 2^70
2009-10-07-Anonymous-NF
no factor from 2^68 to 2^69
2009-10-02-Anonymous-NF
no factor from 2^67 to 2^68
2009-09-29-Anonymous-NF
no factor from 2^66 to 2^67
2009-09-25piNF
no factor from 2^65 to 2^66
2009-09-22piNF
no factor from 2^64 to 2^65
2009-04-10BadidasNF
no factor from 2^63 to 2^64