Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
8121577Factored
FactorDigitsBitsDate
590853377135872993212065.72012-09-22 14:52:27
LL
StatusDateUserResidueShift
Verified (Factored)1999-12-08Steve SpicerE2AB24D78FB67ED83182346
Verified (Factored)2002-08-10Marc Getty / Phil FizurE2AB24D78FB67ED86527961
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-08-19Justine V.6D0166F0B802FEF7154380953
Verified2020-02-19oodaira6D0166F0B802FEF71144562553
History
DateUserTypeResult
2023-03-01FlaukrotistNF
no factor from 2^68 to 2^69
2022-10-25FlaukrotistNF-PM1
B1=2200000, B2=1908376140
2022-04-09LordJuliusNF
no factor from 2^66 to 2^67
2022-04-09LordJuliusNF
no factor from 2^64 to 2^65
2022-04-09LordJuliusNF
no factor from 2^1 to 2^64
2022-03-15FlaukrotistNF
no factor from 2^67 to 2^68
2020-02-19oodairaC-PRP
M8121577/59085337713587299321 : 6D0166F0B802FEF7
PRP: Verified
PRP without proof (not generated)
2018-08-19Justine V.C-PRP
M8121577/59085337713587299321 : 6D0166F0B802FEF7
PRP: Verified
PRP without proof (not generated)
2012-09-22James HeinrichF-ECM
Factor: 59085337713587299321