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
1116491Factored
FactorDigitsBitsDate
124979084780839807533573900880731100.02015-03-11 21:09:09
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David SlowinskiDED0
Verified (Factored)Les71F1AD087D9B2DED0
Verified (Factored)2002-05-05S5748371F1AD087D9B2DED323133
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-29Oliver KruseF43E4C71E37924521013
Verified2017-10-16Oliver KruseF43E4C71E3792452123930213
Verified2018-01-02ATHF43E4C71E3792452162998913
P-1 factors
DateFactorB1B2
2015-03-1112497908478083980753357390088075000000200000000
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^58 to 2^60
2018-01-02ATHC-PRP
M1116491/1249790847808398075335739008807 : F43E4C71E3792452
PRP: Verified
PRP without proof (not generated)
2017-10-16Oliver KruseC-PRP
M1116491/1249790847808398075335739008807 : F43E4C71E3792452
PRP: Verified
PRP without proof (not generated)
2017-09-29Oliver KruseC-PRP
M1116491/1249790847808398075335739008807 : F43E4C71E3792452
PRP: Verified
PRP without proof (not generated)
2015-03-11mikrF-PM1
Factor: 1249790847808398075335739008807 / (P-1, B1=5000000, B2=200000000, E=12)
2014-12-31lycornNF
no factor from 2^64 to 2^65
2014-12-22Matthias WurtingerNF
no factor from 2^63 to 2^64
2012-10-27kurlyNF-PM1
B1=500000, B2=10000000, E=12
2012-10-13dbaughNF
no factor from 2^62 to 2^63
2011-05-09XyzzyNF
no factor from 2^61 to 2^62
2009-02-19Sturle SundeNF
no factor from 2^60 to 2^61