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

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Exponent Range:










MnStatusDetails
76163671Factored
FactorDigitsBitsDate
3154506359739309147646492478.12015-07-22 23:53:34
P-1 factors
DateFactorB1B2
2015-07-223154506359739309147646496250000
History
DateUserTypeResult
2015-07-22guruF-PM1
Factor: 315450635973930914764649 / (P-1, B1=625000)
2015-07-20Tim SorberaNF
no factor from 2^74 to 2^75
2015-07-20Tim SorberaNF
no factor from 2^73 to 2^74
2015-07-141997rj7NF
no factor from 2^72 to 2^73
2015-07-07el groccoNF
no factor from 2^71 to 2^72
2012-12-21Per JessenNF
no factor from 2^70 to 2^71
2010-11-16PerendieNF
no factor from 2^69 to 2^70
2010-11-09PerendieNF
no factor from 2^68 to 2^69
2010-11-04PerendieNF
no factor from 2^67 to 2^68
2010-10-30PerendieNF
no factor from 2^66 to 2^67
2010-10-26MarzbugNF
no factor from 2^65 to 2^66
2010-10-23Wolfgang StegerNF
no factor from 2^64 to 2^65