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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Exponent Range:










MnStatusDetails
8100457Factored
FactorDigitsBitsDate
5563746239896948544155212478.92012-09-22 14:52:25
LL
StatusDateUserResidueShift
Verified (Factored)1999-08-31Timothy LudersD3935AF822AF0EB42863339
Verified (Factored)2003-10-08Ars Technica Team Prime RibD3935AF822AF0EB46534468
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-08-14Oliver KruseBBDA1B27D4FFBF4C1740731153
Verified2020-02-25krackerBBDA1B27D4FFBF4C1376029153
History
DateUserTypeResult
2022-10-26FlaukrotistNF
no factor from 2^68 to 2^69
2022-05-08FlaukrotistNF-PM1
B1=2200000, B2=1908376140
2022-04-10James HeinrichNF
no factor from 2^66 to 2^67
2022-04-10James HeinrichNF
no factor from 2^65 to 2^66
2022-04-10James HeinrichNF
no factor from 2^64 to 2^65
2022-04-07LordJuliusNF
no factor from 2^66 to 2^67
2022-04-07LordJuliusNF
no factor from 2^65 to 2^66
2022-04-07LordJuliusNF
no factor from 2^64 to 2^65
2022-04-07LordJuliusNF
no factor from 2^1 to 2^64
2022-01-16FlaukrotistNF
no factor from 2^67 to 2^68
2020-02-25krackerC-PRP
M8100457/556374623989694854415521 : BBDA1B27D4FFBF4C
PRP: Verified
PRP without proof (not generated)
2018-08-14Oliver KruseC-PRP
M8100457/556374623989694854415521 : BBDA1B27D4FFBF4C
PRP: Verified
PRP without proof (not generated)
2012-09-22James HeinrichF-ECM
Factor: 556374623989694854415521
2012-07-18AxelssonNF
no factor from 2^63 to 2^64