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
56907583Factored
FactorDigitsBitsDate
78780876903905297909772272.72012-07-18 11:38:56
P-1 factors
DateFactorB1B2
2012-07-18787808769039052979097756500011158750
History
DateUserTypeResult
2022-06-27LordJuliusNF
no factor from 2^62 to 2^63
2012-07-18Jwb52zF-PM1
Factor: 7878087690390529790977
2012-05-11LaurVNF
no factor from 2^71 to 2^72
2011-09-07Helmut KirrmaierNF
no factor from 2^70 to 2^71
2011-06-17blackivoryNF
no factor from 2^69 to 2^70
2011-04-22Helmut ZulusNF
no factor from 2^68 to 2^69
2009-11-21Sturle SundeNF
no factor from 2^67 to 2^68
2008-08-28Sturle SundeNF
no factor from 2^66 to 2^67
2008-08-27Sturle SundeNF
no factor from 2^65 to 2^66
2008-08-26Sturle SundeNF
no factor from 2^64 to 2^65
2008-08-24Sturle SundeNF
no factor from 2^63 to 2^64