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
56562059Factored
FactorDigitsBitsDate
43179285652210672764870369395310600944939128.32012-07-14 06:50:34
P-1 factors
DateFactorB1B2
2012-07-1443179285652210672764870369395310600944957000012112500
History
DateUserTypeResult
2022-06-27LordJuliusNF
no factor from 2^63 to 2^64
2012-07-14pshafferF-PM1
Factor: 431792856522106727648703693953106009449
2012-07-06Jerry HallettNF
no factor from 2^71 to 2^72
2011-09-07ITSNF
no factor from 2^70 to 2^71
2011-06-26XyzzyNF
no factor from 2^69 to 2^70
2011-04-15TBM PrimeNF
no factor from 2^68 to 2^69
2009-05-222knarfNF
no factor from 2^67 to 2^68
2008-03-27James HeinrichNF
no factor from 2^66 to 2^67
2008-03-25James HeinrichNF
no factor from 2^65 to 2^66
2008-03-24Sturle SundeNF
no factor from 2^64 to 2^65