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
2113667Factored
FactorDigitsBitsDate
2109413916998413911674872477.52015-08-04 19:45:14
ECM
DigitsB1Curves
2550000103 / 280
Estimated T-Level: 21.8 ⓘ
TF below 2^68 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Don WeberBC6CC8F01C5D06A60
Verified (Factored)1999-01-29David PhillipsBC6CC8F01C5D06A61145715
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-30alpertron7855648496382EBB1013
Verified2017-10-21Oliver Kruse7855648496382EBB1169031313
History
DateUserTypeResult
2022-03-09LordJuliusNF
no factor from 2^1 to 2^60
2017-10-21Oliver KruseC-PRP
M2113667/210941391699841391167487 : 7855648496382EBB
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M2113667/210941391699841391167487 : 7855648496382EBB
PRP: Verified
PRP without proof (not generated)
2016-03-22alpertronNF-PM1
B1=500000, B2=15000000, E=12
2015-08-04guruF-ECM
Factor: 210941391699841391167487 / (ECM curve 3, B1=50000, B2=5000000)
2015-03-15VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-15VictordeHollanderNF
no factor from 2^63 to 2^64
2013-09-05ramgeisNF
no factor from 2^62 to 2^63
2012-04-01Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-28James HeinrichNF-PM1
B1=140000, B2=3010000, E=6
2011-01-10JossNF-PM1
B1=50000
2010-12-30JossNF-PM1
B1=30000
2009-08-02USAFSSNF-PM1
B1=20000, B2=260000
2009-01-03Sturle SundeNF
no factor from 2^60 to 2^61