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

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MnStatusDetails
101569583Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1577581704470114627921112477.12020-12-12 07:26:29
P-1 factors
DateFactorB1B2
2020-12-1215775817044701146279211175000025000000
History
DateUserTypeResult
2020-12-12ky0urakuF-PM1
Factor: 157758170447011462792111 / (P-1, B1=750000, B2=25000000)
2020-10-13Christian R. Mueller-HirschkornNF
no factor from 2^72 to 2^73
2020-10-10TheJudgerNF
no factor from 2^75 to 2^76
2020-10-10TheJudgerNF
no factor from 2^74 to 2^75
2020-03-20Niels_Mache_NextcloudNF
no factor from 2^73 to 2^74
2020-03-20Niels_Mache_NextcloudNF
no factor from 2^72 to 2^73
2017-09-29el groccoNF
no factor from 2^71 to 2^72
2014-12-09shaugeNF
no factor from 2^70 to 2^71
2014-10-09La GüiraNF
no factor from 2^69 to 2^70
2014-10-09La GüiraNF
no factor from 2^68 to 2^69
2014-10-09La GüiraNF
no factor from 2^67 to 2^68
2014-09-03ColinNF
no factor from 2^66 to 2^67
2012-04-16CandideNF
no factor from 2^65 to 2^66
2010-08-14sasaki3NF
no factor from 2^64 to 2^65
2010-03-011997rj7NF
no factor from 2^63 to 2^64