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

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MnStatusDetails
109999889Factored
FactorDigitsBitsDate
66678311802710300422581007070120227136119.02017-01-31 02:47:06
P-1 factors
DateFactorB1B2
2017-01-31666783118027103004225810070701202271115000034212500
History
DateUserTypeResult
2017-01-31timbitF-PM1
Factor: 666783118027103004225810070701202271 / (P-1, B1=1150000, B2=34212500, E=6)
2015-08-26Chang Chia-TcheNF
no factor from 2^70 to 2^71
2015-08-18g0bNF
no factor from 2^69 to 2^70
2015-01-27el groccoNF
no factor from 2^68 to 2^69
2015-01-26el groccoNF
no factor from 2^67 to 2^68
2013-10-12Cow_tippingNF
no factor from 2^66 to 2^67
2012-05-30RichardNF
no factor from 2^65 to 2^66
2010-05-28Rob_DeeNF
no factor from 2^64 to 2^65
2010-05-03Carsten KossendeyNF
no factor from 2^63 to 2^64