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

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MnStatusDetails
71584741Factored
FactorDigitsBitsDate
2858053673505118082528700732787.92015-03-15 15:58:37
P-1 factors
DateFactorB1B2
2015-03-152858053673505118082528700736600000
History
DateUserTypeResult
2015-03-15TheJudgerF-PM1
Factor: 285805367350511808252870073 / (P-1, B1=660000)
2015-03-10chalsallNF
no factor from 2^73 to 2^74
2015-02-27infinigonNF
no factor from 2^72 to 2^73
2014-12-30RichD0NF
no factor from 2^71 to 2^72
2013-08-20processinfoNF
no factor from 2^70 to 2^71
2013-04-15GustavNF
no factor from 2^69 to 2^70
2010-10-21drewha - BelarusNF
no factor from 2^68 to 2^69
2010-10-14drewha - BelarusNF
no factor from 2^67 to 2^68
2010-08-06Cube1200NF
no factor from 2^66 to 2^67
2010-04-29GrunwalderGIMPNF
no factor from 2^65 to 2^66
2010-04-27ddboy3NF
no factor from 2^64 to 2^65
2008-10-19Wojciech FlorekNF
no factor to 2^64