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

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MnStatusDetails
79370359Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
206981679550270776360348732684.12016-09-17 04:43:22
P-1 factors
DateFactorB1B2
2016-09-172069816795502707763603487367000013567500
History
DateUserTypeResult
2016-09-17baseyF-PM1
Factor: 20698167955027077636034873 / (P-1, B1=670000, B2=13567500, E=12)
2016-08-05AirSquirrelsNF
no factor from 2^74 to 2^75
2016-08-05AirSquirrelsNF
no factor from 2^73 to 2^74
2016-08-03RichD0NF
no factor from 2^72 to 2^73
2016-02-21DerekNF
no factor from 2^71 to 2^72
2013-01-25Smok_bmv NF
no factor from 2^70 to 2^71
2012-04-07ANONYMOUSNF
no factor from 2^69 to 2^70
2012-04-04GrunwalderGIMPNF
no factor from 2^68 to 2^69
2011-04-09Carsten KossendeyNF
no factor from 2^67 to 2^68
2011-04-09Carsten KossendeyNF
no factor from 2^66 to 2^67
2011-01-25hackepeterNF
no factor from 2^65 to 2^66
2009-07-16Patrik JohanssonNF
no factor from 2^64 to 2^65
2009-05-30Architects CubedNF
no factor from 2^63 to 2^64