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

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MnStatusDetails
79171087Factored
FactorDigitsBitsDate
617298246116453227466892375.72016-08-24 12:13:02
P-1 factors
DateFactorB1B2
2016-08-24617298246116453227466896650000
History
DateUserTypeResult
2016-08-24baseyF-PM1
Factor: 61729824611645322746689 / (P-1, B1=665000)
2016-07-15AirSquirrelsNF
no factor from 2^74 to 2^75
2016-07-15AirSquirrelsNF
no factor from 2^73 to 2^74
2016-07-15AirSquirrelsNF
no factor from 2^72 to 2^73
2016-04-05Mark RoseNF
no factor from 2^63 to 2^64
2016-02-13Stef42NF
no factor from 2^71 to 2^72
2013-01-19Bold_SeekerNF
no factor from 2^70 to 2^71
2011-02-20ITSNF
no factor from 2^69 to 2^70
2011-02-14Mikael LavoieNF
no factor from 2^68 to 2^69
2011-02-08eon_blue_apocalypseNF
no factor from 2^67 to 2^68
2010-12-06Pi_RhoNF
no factor from 2^66 to 2^67
2010-11-29Michael CNF
no factor from 2^65 to 2^66
2010-11-24XyzzyNF
no factor from 2^64 to 2^65