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
3328427Factored
FactorDigitsBitsDate
299558431928.2old
479293489928.82008-09-07 19:48:24
53300298911936871652.22014-02-22 18:42:47
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-04Oliver KruseD8B8D6959DA5E1903289948453
Verified2017-12-15kkmrkkblmbrbkD8B8D6959DA5E190348369753
History
DateUserTypeResult
2022-10-06JossNF-PM1
B1=3328427, B2=445853100
2022-08-10LordJuliusNF
no factor from 2^67 to 2^68
2022-08-10LordJuliusNF
no factor from 2^66 to 2^67
2022-08-10LordJuliusNF
no factor from 2^65 to 2^66
2022-08-10LordJuliusNF
no factor from 2^64 to 2^65
2022-08-10LordJuliusNF
no factor from 2^63 to 2^64
2022-08-10LordJuliusNF
no factor from 2^62 to 2^63
2022-08-04J.R. AllenNF
no factor from 2^63 to 2^64
2022-08-04J.R. AllenNF
no factor from 2^62 to 2^63
2022-01-19JossNF-PM1
B1=3328427, B2=339025050
2021-12-20JossNF-PM1
B1=3328427, B2=116701200
2021-08-04JossNF
no factor from 2^67 to 2^68
2021-08-01JossNF-PM1
B1=3328427
2020-09-15JossNF-PM1
B1=332842, B2=6656854, E=6
2020-07-30JossNF-PM1
B1=332842, B2=3328427, E=6
2017-12-15kkmrkkblmbrbkC-PRP
M3328427/299558431/479293489/5330029891193687 : D8B8D6959DA5E190
PRP: Verified
PRP without proof (not generated)
2017-11-04Oliver KruseC-PRP
M3328427/299558431/479293489/5330029891193687 : D8B8D6959DA5E190
PRP: Verified
PRP without proof (not generated)
2014-02-22Never Odd Or EvenF
Factor: 5330029891193687 / TF: 10-62
2008-09-07Will EdgingtonF
Factor: 479293489