Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
39674177Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
472589177732954466149512375.32021-05-05 10:23:09
LL
StatusDateUserResidueShift
Verified (Factored)2007-09-28Jürgen HerlesE487FCF7F9C644EF16374707
Verified (Factored)2016-12-20Sergey NosovE487FCF7F9C644EF15248423
P-1 factors
DateFactorB1B2
2021-05-054725891777329544661495115000001500000
History
DateUserTypeResult
2021-05-05Sid & AndyF-PM1
Factor: 47258917773295446614951 / (P-1, B1=1500000)
2020-02-14-Anonymous-NF
no factor from 2^73 to 2^74
2019-10-11-Anonymous-NF
no factor from 2^72 to 2^73
2019-06-27monstNF
no factor from 2^71 to 2^72
2016-12-20Sergey NosovC-LL
E487FCF7F9C644EF
2014-12-21megavinkNF
no factor from 2^70 to 2^71
2014-12-21megavinkNF
no factor from 2^69 to 2^70