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

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MnStatusDetails
101227213Factored
FactorDigitsBitsDate
288588879364647460866645192684.62020-11-21 22:51:11
P-1 factors
DateFactorB1B2
2020-11-212885888793646474608666451975000025000000
History
DateUserTypeResult
2020-11-21ky0urakuF-PM1
Factor: 28858887936464746086664519 / (P-1, B1=750000, B2=25000000)
2020-10-02Luigi MorelliNF
no factor from 2^75 to 2^76
2020-09-28Richard ThomasNF
no factor from 2^74 to 2^75
2020-03-22XZTNF
no factor from 2^73 to 2^74
2020-03-22XZTNF
no factor from 2^72 to 2^73
2014-12-19SMoffatNF
no factor from 2^71 to 2^72
2014-10-10shaugeNF
no factor from 2^70 to 2^71
2014-03-27Andreas_TruetschNF
no factor from 2^69 to 2^70
2014-03-24SMoffatNF
no factor from 2^68 to 2^69
2013-10-25DeadSkinMaskNF
no factor from 2^67 to 2^68
2013-10-24soldcakeNF
no factor from 2^66 to 2^67
2012-04-14sannerud.comNF
no factor from 2^65 to 2^66
2010-08-12Mr-PlonkNF
no factor from 2^64 to 2^65
2010-03-291997rj7NF
no factor from 2^63 to 2^64