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

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MnStatusDetails
75966391Factored
FactorDigitsBitsDate
8571633360038484367117212479.52015-05-04 05:22:06
P-1 factors
DateFactorB1B2
2015-05-048571633360038484367117216250009375000
History
DateUserTypeResult
2015-05-04guruF-PM1
Factor: 857163336003848436711721 / (P-1, B1=625000, B2=9375000)
2015-04-10NickOfTimeNF
no factor from 2^74 to 2^75
2015-04-10NickOfTimeNF
no factor from 2^73 to 2^74
2015-04-10NickOfTimeNF
no factor from 2^72 to 2^73
2015-04-10NickOfTimeNF
no factor from 2^71 to 2^72
2012-12-15Jase428NF
no factor from 2^70 to 2^71
2010-11-07Jeff PalmerNF
no factor from 2^69 to 2^70
2010-11-06Jeff PalmerNF
no factor from 2^68 to 2^69
2010-11-05Jeff PalmerNF
no factor from 2^67 to 2^68
2010-11-05Jeff PalmerNF
no factor from 2^66 to 2^67
2010-11-05Helmut ZulusNF
no factor from 2^65 to 2^66
2010-10-31RonnyKarlNF
no factor from 2^64 to 2^65
2009-06-02Architects CubedNF
no factor from 2^63 to 2^64