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
299567Factored
FactorDigitsBitsDate
3494342789255692260548382412788.22019-09-15 06:39:11
ECM
DigitsB1Curves
2550000280 / 280
30250000439 / 640
Estimated T-Level: 28.4 ⓘ
TF below 2^89 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski2DD70
Verified (Factored)Unknown2DD70
Verified (Factored)Guillermo Ballester Valor5CDFEA93C3C52DD70
Verified (Factored)Eivind Triel5CDFEA93C3C52DD7127019
Verified (Factored)2001-11-24Eugene Gogol'5CDFEA93C3C52DD7208122
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2019-09-15nordi93E47A30365AE4A2129226453
Verified2019-09-15ATH93E47A30365AE4A2117509753
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2021-04-30nordiNF-PP1
Start=6/5, B1=10000000, B2=500000000
2021-04-23nordiNF-PP1
Start=2/7, B1=10000000, B2=500000000
2019-09-15ATHC-PRP
M299567/349434278925569226054838241 : 93E47A30365AE4A2
PRP: Verified
PRP without proof (small exponent)
2019-09-15nordiC-PRP
M299567/349434278925569226054838241 : 93E47A30365AE4A2
PRP: Verified
PRP without proof (small exponent)
2019-09-15nordiF-ECM
Factor: 349434278925569226054838241 / (ECM curve 171, B1=250000, B2=25000000, Sigma=4564357251219755)
2017-08-26ConductorNF
no factor from 2^64 to 2^65
2016-01-03Gordon SpenceNF
no factor from 2^63 to 2^64
2016-01-03Gordon SpenceNF
no factor from 2^62 to 2^63
2015-08-13NRNF
no factor from 2^61 to 2^62
2013-06-11lycornNF
no factor from 2^60 to 2^61
2009-01-24Sturle SundeNF
no factor from 2^59 to 2^60
2009-01-02Sturle SundeNF
no factor from 2^58 to 2^59
2008-11-15Jayson KingNF-PM1
B1=10000000, B2=400000000, E=12