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

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MnStatusDetails
62173087Factored
FactorDigitsBitsDate
5380843000468381018932850092788.82013-05-05 22:50:59
P-1 factors
DateFactorB1B2
2013-05-0553808430004683810189328500958500010822500
History
DateUserTypeResult
2022-03-30LordJuliusNF
no factor from 2^1 to 2^63
2013-05-05Jwb52zF-PM1
Factor: 538084300046838101893285009
2013-04-03kdgehmanNF
no factor from 2^72 to 2^73
2013-02-17ixfd64NF
no factor from 2^71 to 2^72
2012-09-01S00030NF
no factor from 2^70 to 2^71
2011-12-07StefanNF
no factor from 2^69 to 2^70
2009-12-30Per JessenNF
no factor from 2^68 to 2^69
2009-10-24Helmut ZulusNF
no factor from 2^67 to 2^68
2009-10-19Helmut ZulusNF
no factor from 2^66 to 2^67
2009-10-14Sturle SundeNF
no factor from 2^65 to 2^66
2009-08-12ColinNF
no factor from 2^64 to 2^65
2008-12-22DerekNF
no factor from 2^63 to 2^64