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:





MnDetails
2275439
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 262
Factored
FactorDigitsBitsDate
4550879722.1old
18203513824.12008-07-14 20:22:38
ECM
DigitsB1Curves
2550000280 / 280
30250000121 / 640
Estimated T-Level: 25.9
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-11Oliver Kruse51E0D00AE2912B132013
Verified
PRP without proof (not generated)
2017-11-21storm551051E0D00AE2912B132191831913
History
DateUserTypeResult
2017-11-21storm5510C-PRPM2275439/4550879/18203513 : 51E0D00AE2912B13
2017-10-11Oliver KruseC-PRPM2275439/4550879/18203513 : 51E0D00AE2912B13
2016-04-05alpertronNF-PM1B1=500000, B2=15000000, E=12
2008-07-14George WoltmanF-ECMFactor: 18203513