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

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MnStatusDetails
90946747Factored
FactorDigitsBitsDate
2878994720792538696448073292787.92019-03-27 03:22:55
P-1 factors
DateFactorB1B2
2019-03-2728789947207925386964480732969500013031250
History
DateUserTypeResult
2019-03-27ky0urakuF-PM1
Factor: 287899472079253869644807329 / (P-1, B1=695000, B2=13031250, E=6)
2019-02-03TheJudgerNF
no factor from 2^76 to 2^77
2018-12-09TheJudgerNF
no factor from 2^75 to 2^76
2018-12-09TheJudgerNF
no factor from 2^74 to 2^75
2018-12-09TheJudgerNF
no factor from 2^73 to 2^74
2017-08-01Carsten KossendeyNF
no factor from 2^72 to 2^73
2016-05-22Carsten KossendeyNF
no factor from 2^71 to 2^72
2014-09-05SMoffatNF
no factor from 2^70 to 2^71
2014-04-06Brad CrockettNF
no factor from 2^69 to 2^70
2012-05-26Carsten KossendeyNF
no factor from 2^68 to 2^69
2011-03-22Carsten KossendeyNF
no factor from 2^67 to 2^68
2010-12-10Carsten KossendeyNF
no factor from 2^66 to 2^67
2010-11-18Carsten KossendeyNF
no factor from 2^65 to 2^66
2010-03-24Carsten KossendeyNF
no factor from 2^64 to 2^65