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

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MnStatusDetails
71169949Factored
FactorDigitsBitsDate
274568588386229414172064.62014-12-21 16:05:58
P-1 factors
DateFactorB1B2
2014-12-21274568588386229414176600000
History
DateUserTypeResult
2014-12-21TheJudgerF-PM1
Factor: 27456858838622941417 / (P-1, B1=660000)
2014-12-14TheJudgerNF
no factor from 2^73 to 2^74
2014-12-06gcardonaNF
no factor from 2^72 to 2^73
2014-10-26Stef42NF
no factor from 2^71 to 2^72
2014-04-22HBendtzNF
no factor from 2^70 to 2^71
2013-04-09SMoffatNF
no factor from 2^69 to 2^70
2010-03-16subgeniusNF
no factor from 2^68 to 2^69
2010-03-13S80_UKNF
no factor from 2^67 to 2^68
2010-03-12sannerud.comNF
no factor from 2^66 to 2^67
2010-03-12sannerud.comNF
no factor from 2^65 to 2^66
2010-03-12sannerud.comNF
no factor from 2^64 to 2^65
2008-10-21Wojciech FlorekNF
no factor to 2^64