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
77037731Factored
FactorDigitsBitsDate
716322709155607543564972375.92015-04-29 14:07:12
P-1 factors
DateFactorB1B2
2015-04-29716322709155607543564976850000
History
DateUserTypeResult
2022-06-27LordJuliusNF
no factor from 2^61 to 2^65
2015-04-29guruF-PM1
Factor: 71632270915560754356497 / (P-1, B1=685000)
2014-09-08ChuckNF
no factor from 2^73 to 2^74
2014-09-08ChuckNF
no factor from 2^72 to 2^73
2014-09-08ChuckNF
no factor from 2^71 to 2^72
2013-01-07KayJongsmaNF
no factor from 2^70 to 2^71
2011-01-05JaeckelNF
no factor from 2^69 to 2^70
2010-11-01-Anonymous-NF
no factor from 2^68 to 2^69
2010-10-11Simon DennisNF
no factor from 2^67 to 2^68
2010-09-30b3gNF
no factor from 2^66 to 2^67
2010-09-25Choi4KANGNF
no factor from 2^65 to 2^66