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

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MnStatusDetails
79895269Factored
FactorDigitsBitsDate
21424701491386193824454996846944661942339127.32017-01-31 18:42:40
P-1 factors
DateFactorB1B2
2017-01-3121424701491386193824454996846944661942367000012730000
History
DateUserTypeResult
2017-01-31Pi_RhoF-PM1
Factor: 214247014913861938244549968469446619423 / (P-1, B1=670000, B2=12730000)
2016-08-28AirSquirrelsNF
no factor from 2^74 to 2^75
2016-08-28AirSquirrelsNF
no factor from 2^73 to 2^74
2016-08-28AirSquirrelsNF
no factor from 2^72 to 2^73
2016-03-07Judge HaleNF
no factor from 2^71 to 2^72
2013-01-28MauFonsecaNF
no factor from 2^70 to 2^71
2011-03-16Geoff WingNF
no factor from 2^69 to 2^70
2011-03-12ladenedgeNF
no factor from 2^68 to 2^69
2011-03-09CubeQuest.orgNF
no factor from 2^67 to 2^68
2010-12-31andrea.biancalanaNF
no factor from 2^66 to 2^67
2010-12-12Craig MeyersNF
no factor from 2^65 to 2^66
2010-12-01Architects CubedNF
no factor from 2^64 to 2^65
2009-05-26Architects CubedNF
no factor from 2^63 to 2^64