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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
8117831Factored
FactorDigitsBitsDate
136407974135393943592063.62012-09-22 14:52:27
LL
StatusDateUserResidueShift
Verified (Factored)1999-09-30Jacob D. Hunt4E07E831F994BB9C2065975
Verified (Factored)2003-04-27Ars Technica Team Prime Rib4E07E831F994BB9C5100482
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-08-19Oliver Kruse2A514D8F81DE82F51696003053
Verified2020-02-10oodaira2A514D8F81DE82F51426114853
History
DateUserTypeResult
2023-02-10FlaukrotistNF
no factor from 2^68 to 2^69
2022-09-27FlaukrotistNF-PM1
B1=2200000, B2=1908376140
2022-04-09LordJuliusNF
no factor from 2^66 to 2^67
2022-04-09LordJuliusNF
no factor from 2^65 to 2^66
2022-04-09LordJuliusNF
no factor from 2^64 to 2^65
2022-03-04FlaukrotistNF
no factor from 2^67 to 2^68
2020-02-10oodairaC-PRP
M8117831/13640797413539394359 : 2A514D8F81DE82F5
PRP: Verified
PRP without proof (not generated)
2018-08-19Oliver KruseC-PRP
M8117831/13640797413539394359 : 2A514D8F81DE82F5
PRP: Verified
PRP without proof (not generated)
2012-09-22James HeinrichF-ECM
Factor: 13640797413539394359