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

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MnStatusDetails
101956573Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3158925732015554867158332478.12020-06-10 02:22:31
P-1 factors
DateFactorB1B2
2020-06-103158925732015554867158338050000
History
DateUserTypeResult
2020-06-10paulieF-PM1
Factor: 315892573201555486715833 / (P-1, B1=805000)
2020-04-29TheJudgerNF
no factor from 2^76 to 2^77
2020-04-29TheJudgerNF
no factor from 2^75 to 2^76
2020-03-13JoDuNF
no factor from 2^74 to 2^75
2020-02-10Hans LoeblichNF
no factor from 2^73 to 2^74
2020-02-07el groccoNF
no factor from 2^72 to 2^73
2014-12-08sebanNF
no factor from 2^71 to 2^72
2014-05-19g0bNF
no factor from 2^70 to 2^71
2014-05-05g0bNF
no factor from 2^69 to 2^70
2014-04-22Andreas_TruetschNF
no factor from 2^68 to 2^69
2014-04-05SMoffatNF
no factor from 2^67 to 2^68
2014-03-29Andreas_TruetschNF
no factor from 2^66 to 2^67
2012-04-19ALSNF
no factor from 2^65 to 2^66
2010-08-16hustensaftNF
no factor from 2^64 to 2^65
2010-03-241997rj7NF
no factor from 2^63 to 2^64