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
2627243Factored
FactorDigitsBitsDate
303203089349430007372064.72011-02-27 15:38:51
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Chris WisenBB006C2136047C1A0
Verified (Factored)John CriderBB006C2136047C1A0
Verified (Factored)Charles HanesBB006C2136047C1A0
Verified (Factored)1999-04-23Alan HatfieldBB006C2136047C1A1221088
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-17Oliver Kruse1A1CBAB6EFA0F7E8175979253
Verified2017-12-03alan1451A1CBAB6EFA0F7E8126131253
History
DateUserTypeResult
2022-03-11LordJuliusNF
no factor from 2^1 to 2^60
2019-07-04alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-12-03alan145C-PRP
M2627243/30320308934943000737 : 1A1CBAB6EFA0F7E8
PRP: Verified
PRP without proof (not generated)
2017-10-17Oliver KruseC-PRP
M2627243/30320308934943000737 : 1A1CBAB6EFA0F7E8
PRP: Verified
PRP without proof (not generated)
2011-02-27James HeinrichF-PM1
Factor: 30320308934943000737
2011-01-19JossNF-PM1
B1=50000
2010-12-26JossNF-PM1
B1=30000
2010-12-21JossNF-PM1
B1=20000
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61