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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2569513Factored
FactorDigitsBitsDate
13622995264104445102812270.22015-10-19 03:15:23
122155386385926703321692373.42015-12-18 03:19:18
ECM
DigitsB1Curves
255000015 / 280
Estimated T-Level: 20.3
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)John Holland54DD7EEEA66B5E9D0
Verified (Factored)1999-04-23Lars Lindley54DD7EEEA66B5E9D224659
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-30alpertron80B103486D8F10A72013
Verified2017-11-11Oliver Kruse80B103486D8F10A72161109513
History
DateUserTypeResult
2023-01-28USAFSSNF-PM1
B1=360000, B2=340942140
2022-03-11LordJuliusNF
no factor from 2^1 to 2^60
2017-11-11Oliver KruseC-PRP
M2569513/1362299526410444510281/12215538638592670332169 : 80B103486D8F10A7
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M2569513/12215538638592670332169/1362299526410444510281 : 80B103486D8F10A7
PRP: Verified
PRP without proof (not generated)
2015-12-18guruF-ECM
Factor: 12215538638592670332169 / (ECM curve 2, B1=50000, B2=5000000)
2015-10-19dragon325F-ECM
Factor: 1362299526410444510281 / (ECM curve 1, B1=50000, B2=5000000)
2015-02-23VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-23VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-14dbaughNF
no factor from 2^62 to 2^63
2012-06-17Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-04-16James HeinrichNF-PM1
B1=175000, B2=4112500, E=6
2011-01-10JossNF-PM1
B1=50000
2011-01-03JossNF-PM1
B1=30000
2010-12-21JossNF-PM1
B1=20000
2009-01-29Sturle SundeNF
no factor from 2^60 to 2^61