Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
81216857Factored
FactorDigitsBitsDate
50462077824051985058269779439544645535139128.62017-05-21 08:38:23
P-1 factors
DateFactorB1B2
2017-05-2150462077824051985058269779439544645535168500013700000
History
DateUserTypeResult
2017-05-21bamF-PM1
Factor: 504620778240519850582697794395446455351 / (P-1, B1=685000, B2=13700000)
2016-09-02AirSquirrelsNF
no factor from 2^74 to 2^75
2016-09-02AirSquirrelsNF
no factor from 2^73 to 2^74
2013-03-14jondi_hanlucNF
no factor from 2^72 to 2^73
2013-03-14jondi_hanlucNF
no factor from 2^71 to 2^72
2013-03-14jondi_hanlucNF
no factor from 2^70 to 2^71
2013-03-14jondi_hanlucNF
no factor from 2^69 to 2^70
2013-03-14jondi_hanlucNF
no factor from 2^68 to 2^69
2013-03-13-Anonymous-NF
no factor from 2^67 to 2^68
2013-01-26Bold_SeekerNF
no factor from 2^66 to 2^67
2012-12-01c10ck3rNF
no factor from 2^65 to 2^66
2010-12-12Architects CubedNF
no factor from 2^64 to 2^65