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

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MnStatusDetails
76480981Factored
FactorDigitsBitsDate
4269424111852659433761772478.52015-12-14 18:08:31
P-1 factors
DateFactorB1B2
2015-12-144269424111852659433761776450000
History
DateUserTypeResult
2015-12-14NesowaF-PM1
Factor: 426942411185265943376177 / (P-1, B1=645000)
2015-12-07dh1NF
no factor from 2^74 to 2^75
2015-12-05garoNF
no factor from 2^73 to 2^74
2015-12-05garoNF
no factor from 2^72 to 2^73
2015-12-05garoNF
no factor from 2^71 to 2^72
2012-12-18jack731NF
no factor from 2^70 to 2^71
2010-12-14S485122NF
no factor from 2^69 to 2^70
2010-12-14S485122NF
no factor from 2^68 to 2^69
2010-12-14S485122NF
no factor from 2^67 to 2^68
2010-12-13S485122NF
no factor from 2^66 to 2^67
2010-09-05drewha - BelarusNF
no factor from 2^65 to 2^66
2010-09-04GrunwalderGIMPNF
no factor from 2^64 to 2^65