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

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MnStatusDetails
72685439Factored
FactorDigitsBitsDate
30918683821602714842821432581.42015-08-26 22:33:50
P-1 factors
DateFactorB1B2
2015-08-26309186838216027148428214362000011470000
History
DateUserTypeResult
2015-08-26Jwb52zF-PM1
Factor: 3091868382160271484282143 / (P-1, B1=620000, B2=11470000)
2015-08-24S36049NF
no factor from 2^74 to 2^75
2015-08-24S36049NF
no factor from 2^73 to 2^74
2015-08-17FredrikNF
no factor from 2^72 to 2^73
2015-03-11srow7NF
no factor from 2^71 to 2^72
2013-04-20SMoffatNF
no factor from 2^70 to 2^71
2012-11-28NoWhereManNF
no factor from 2^69 to 2^70
2010-09-13arnaudNF
no factor from 2^68 to 2^69
2010-09-09eon_blue_apocalypseNF
no factor from 2^67 to 2^68
2010-09-06KYOJI_KAMEINF
no factor from 2^66 to 2^67
2010-09-01Kevin JagetNF
no factor from 2^65 to 2^66
2010-06-07Kevin JagetNF
no factor from 2^64 to 2^65
2008-09-19Wojciech FlorekNF
no factor to 2^64