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

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MnStatusDetails
79231771Factored
FactorDigitsBitsDate
839727393801816092184732376.22016-08-26 17:09:34
P-1 factors
DateFactorB1B2
2016-08-26839727393801816092184736700000
History
DateUserTypeResult
2016-08-26baseyF-PM1
Factor: 83972739380181609218473 / (P-1, B1=670000)
2016-07-21AirSquirrelsNF
no factor from 2^74 to 2^75
2016-07-21AirSquirrelsNF
no factor from 2^73 to 2^74
2016-07-17Travis Glenn RussoNF
no factor from 2^72 to 2^73
2016-04-05Mark RoseNF
no factor from 2^63 to 2^64
2016-04-04Mark RoseNF
no factor from 2^64 to 2^65
2016-02-19DerekNF
no factor from 2^71 to 2^72
2013-07-13SMoffatNF
no factor from 2^70 to 2^71
2013-01-22GrunwalderGIMPNF
no factor from 2^69 to 2^70
2012-04-12Alan PearmainNF
no factor from 2^68 to 2^69
2011-04-09symalladNF
no factor from 2^67 to 2^68
2011-01-17GrunwalderGIMPNF
no factor from 2^66 to 2^67
2010-11-16RhyledNF
no factor from 2^65 to 2^66