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

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MnStatusDetails
31247507Factored
FactorDigitsBitsDate
5178470170599128975821192478.82021-09-09 22:58:43
LL
StatusDateUserResidueShift
Verified (Factored)2007-02-20Trae Clevenger8E5013FAE9D5BB8D19883038
Verified (Factored)2013-05-19ANONYMOUS8E5013FAE9D5BB8D2359686
P-1 factors
DateFactorB1B2
2021-09-09517847017059912897582119100000030000000
History
DateUserTypeResult
2021-09-09Sid & AndyF-PM1
Factor: 517847017059912897582119 / (P-1, B1=1000000, B2=30000000)
2020-04-08-Anonymous-NF
no factor from 2^73 to 2^74
2019-12-20-Anonymous-NF
no factor from 2^72 to 2^73
2019-12-20-Anonymous-NF
no factor from 2^71 to 2^72
2018-04-22ramgeisNF
no factor from 2^70 to 2^71
2013-05-19ANONYMOUSC-LL
8E5013FAE9D5BB8D
2013-02-21apsenNF
no factor from 2^69 to 2^70
2012-06-30Oscar ÖstlinNF
no factor from 2^68 to 2^69