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

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MnStatusDetails
100128563Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
64906873891857593243245192582.42020-09-10 21:28:30
P-1 factors
DateFactorB1B2
2020-09-10649068738918575932432451984000017220000
History
DateUserTypeResult
2020-09-10ky0urakuF-PM1
Factor: 6490687389185759324324519 / (P-1, B1=840000, B2=17220000, E=12)
2020-02-08KrieselNF
no factor from 2^75 to 2^76
2020-02-08KrieselNF
no factor from 2^74 to 2^75
2020-02-04KrieselNF
no factor from 2^73 to 2^74
2020-01-30KrieselNF
no factor from 2^72 to 2^73
2015-03-31webbertNF
no factor from 2^71 to 2^72
2011-04-12Craig MeyersNF
no factor from 2^70 to 2^71
2011-04-12Craig MeyersNF
no factor from 2^69 to 2^70
2011-04-12Craig MeyersNF
no factor from 2^68 to 2^69
2011-04-12Craig MeyersNF
no factor from 2^67 to 2^68
2011-02-26Craig MeyersNF
no factor from 2^66 to 2^67
2011-02-02Craig MeyersNF
no factor from 2^65 to 2^66
2010-08-09Architects CubedNF
no factor from 2^64 to 2^65