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
2480693Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
14884159823.8old
238146529927.82008-07-14 20:24:12
476293057928.82008-07-14 20:24:12
826715879962134971756.22015-03-16 12:51:58
ECM
DigitsB1Curves
2550000195 / 280
Estimated T-Level: 23.5
TF below 2^73 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-14Oliver KruseB8366A497F2CDD924136882153
Verified2017-11-30kkmrkkblmbrbkB8366A497F2CDD924152880853
History
DateUserTypeResult
2023-03-18Denial140NF-PM1
B1=1000000, B2=6543255810
2022-08-17USAFSSNF-PM1
B1=224000, B2=203668920
2017-11-30kkmrkkblmbrbkC-PRP
M2480693/14884159/238146529/476293057/82671587996213497 : B8366A497F2CDD92
PRP: Verified
PRP without proof (not generated)
2017-10-14Oliver KruseC-PRP
M2480693/14884159/238146529/476293057/82671587996213497 : B8366A497F2CDD92
PRP: Verified
PRP without proof (not generated)
2015-03-16TJAOIF
Factor: 82671587996213497 / TF: 56-57
2008-07-14George WoltmanF-ECM
Factor: 476293057
2008-07-14George WoltmanF-ECM
Factor: 238146529