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
2061149Factored
FactorDigitsBitsDate
2241551914843904550732167.62008-12-09 18:26:30
ECM
DigitsB1Curves
2550000128 / 280
Estimated T-Level: 22.3
TF below 2^69 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Michael SchrufAC29E1ECF09A34850
Verified (Factored)1999-02-07Stefan EnbergAC29E1ECF09A34851063589
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-06Oliver Kruse8C0D883AB3C16B2E1013
Verified2017-11-15kkmrkkblmbrbk8C0D883AB3C16B2E1130533313
History
DateUserTypeResult
2017-11-15kkmrkkblmbrbkC-PRP
M2061149/224155191484390455073 : 8C0D883AB3C16B2E
PRP: Verified
PRP without proof (not generated)
2017-10-06Oliver KruseC-PRP
M2061149/224155191484390455073 : 8C0D883AB3C16B2E
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-12-09SubPrimeF-ECM
Factor: 224155191484390455073