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

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MnStatusDetails
72375889Factored
FactorDigitsBitsDate
40473163691039927380364332581.72015-07-28 16:38:51
P-1 factors
DateFactorB1B2
2015-07-28404731636910399273803643362000012090000
History
DateUserTypeResult
2015-07-28Jimmy BrüggemannF-PM1
Factor: 4047316369103992738036433 / (P-1 B1=620000, B2=12090000, E=6)
2015-06-28TheJudgerNF
no factor from 2^74 to 2^75
2015-06-28TheJudgerNF
no factor from 2^73 to 2^74
2015-06-28TheJudgerNF
no factor from 2^72 to 2^73
2015-02-21RichD0NF
no factor from 2^71 to 2^72
2014-06-04HBendtzNF
no factor from 2^70 to 2^71
2012-11-20sikafarmi_rendering_farmNF
no factor from 2^69 to 2^70
2010-06-18Andre.DemeshinNF
no factor from 2^68 to 2^69
2010-06-13Andre.DemeshinNF
no factor from 2^67 to 2^68
2010-06-08raymondfNF
no factor from 2^66 to 2^67
2010-06-05raymondfNF
no factor from 2^65 to 2^66
2010-05-20-Anonymous-NF
no factor from 2^64 to 2^65
2008-09-19Wojciech FlorekNF
no factor to 2^64