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
2272631Factored
FactorDigitsBitsDate
1251016009113382859032166.82010-01-02 14:18:10
ECM
DigitsB1Curves
255000084 / 280
Estimated T-Level: 21.5 ⓘ
TF below 2^66 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Wayne ScottCD4ECB6181E64BC30
Bad1999-03-01Jeff CambronEE32741F9DF6024D1969801
Verified (Factored)1999-07-27Stephen WoodCD4ECB6181E64BC31948619
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-11Oliver KruseAE93299848B1D7301013
Verified2017-11-21storm5510AE93299848B1D7301144959513
History
DateUserTypeResult
2017-11-21storm5510C-PRP
M2272631/125101600911338285903 : AE93299848B1D730
PRP: Verified
PRP without proof (not generated)
2017-10-11Oliver KruseC-PRP
M2272631/125101600911338285903 : AE93299848B1D730
PRP: Verified
PRP without proof (not generated)
2016-04-29alpertronNF-PM1
B1=500000, B2=15000000, E=12
2010-01-02KAMCOBILLF-ECM
Factor: 125101600911338285903
2009-01-10Sturle SundeNF
no factor from 2^60 to 2^61