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
56726627Factored
FactorDigitsBitsDate
672048818646804521913710712685.82012-07-16 17:28:11
P-1 factors
DateFactorB1B2
2012-07-16672048818646804521913710715600000
History
DateUserTypeResult
2022-06-27LordJuliusNF
no factor from 2^61 to 2^63
2012-07-16Jwb52zF-PM1
Factor: 67204881864680452191371071
2012-07-06Jerry HallettNF
no factor from 2^71 to 2^72
2011-12-23Adam StinchcombeNF
no factor from 2^70 to 2^71
2011-06-11steinrarNF
no factor from 2^69 to 2^70
2011-04-24Per JessenNF
no factor from 2^68 to 2^69
2009-06-11freeshowNF
no factor from 2^67 to 2^68
2008-08-09James HeinrichNF
no factor from 2^66 to 2^67
2008-08-08Sturle SundeNF
no factor from 2^65 to 2^66
2008-08-08Sturle SundeNF
no factor from 2^64 to 2^65
2008-08-06Sturle SundeNF
no factor from 2^63 to 2^64