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

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MnStatusDetails
101844073Factored
FactorDigitsBitsDate
28577088828916773519293047140287943136117.82019-12-14 00:10:25
P-1 factors
DateFactorB1B2
2019-12-142857708882891677351929304714028794318650000
History
DateUserTypeResult
2019-12-14ValenvioF-PM1
Factor: 285770888289167735192930471402879431 / (P-1, B1=865000)
2018-11-27el groccoNF
no factor from 2^71 to 2^72
2013-09-01RobishNF
no factor from 2^70 to 2^71
2013-08-30RobishNF
no factor from 2^69 to 2^70
2013-08-28RobishNF
no factor from 2^68 to 2^69
2013-08-27RobishNF
no factor from 2^67 to 2^68
2013-08-27SMoffatNF
no factor from 2^66 to 2^67
2012-06-17Torchwood InstituteNF
no factor from 2^65 to 2^66
2010-08-15sasaki3NF
no factor from 2^64 to 2^65
2010-04-081997rj7NF
no factor from 2^63 to 2^64