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

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MnStatusDetails
101232721Factored
FactorDigitsBitsDate
520792651847325628949814017112995.42020-11-21 08:01:04
P-1 factors
DateFactorB1B2
2020-11-215207926518473256289498140171150000012500000
History
DateUserTypeResult
2020-11-21ky0urakuF-PM1
Factor: 52079265184732562894981401711 / (P-1, B1=500000, B2=12500000)
2020-09-29ktonyNF
no factor from 2^75 to 2^76
2020-09-29Richard ThomasNF
no factor from 2^74 to 2^75
2020-03-29Hans LoeblichNF
no factor from 2^73 to 2^74
2020-03-20el groccoNF
no factor from 2^72 to 2^73
2014-12-19SMoffatNF
no factor from 2^71 to 2^72
2014-10-06Earle LoweNF
no factor from 2^70 to 2^71
2014-03-27Andreas_TruetschNF
no factor from 2^69 to 2^70
2014-03-24SMoffatNF
no factor from 2^68 to 2^69
2013-10-26GrunwalderGIMPNF
no factor from 2^67 to 2^68
2013-08-25RobishNF
no factor from 2^66 to 2^67
2012-04-14subgeniusNF
no factor from 2^65 to 2^66
2010-08-13RichardNF
no factor from 2^64 to 2^65
2010-03-291997rj7NF
no factor from 2^63 to 2^64