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
2426887Factored
FactorDigitsBitsDate
22715662331031.1old
304393952258171444.82008-09-07 10:05:53
4254907158227057256135672478.52018-07-23 00:28:00
ECM
DigitsB1Curves
255000061 / 280
Estimated T-Level: 21.1
TF below 2^65 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-13Oliver Kruse14BEEBCB0530CFCF295348353
Verified (Factored)2017-11-27kkmrkkblmbrbk14BEEBCB0530CFCF2116655453
Verified2018-07-23_p95holder_14BEEBCB0530CFCF3130141153
Verified2018-07-23_p95holder_14BEEBCB0530CFCF349657953
P-1 factors
DateFactorB1B2
2018-07-2342549071582270572561356720000000
History
DateUserTypeResult
2022-08-26USAFSSNF-PM1
B1=600000, B2=577075590
2018-07-23_p95holder_C-PRP
M2426887/2271566233/30439395225817/425490715822705725613567 : 14BEEBCB0530CFCF
PRP: Verified
PRP without proof (not generated)
2018-07-23_p95holder_C-PRP
M2426887/2271566233/30439395225817/425490715822705725613567 : 14BEEBCB0530CFCF
PRP: Verified
PRP without proof (not generated)
2018-07-23alpertronF-PM1
Factor: 425490715822705725613567 / (P-1, B1=2000000)
2017-11-27kkmrkkblmbrbkC-PRP
M2426887/2271566233/30439395225817 : 14BEEBCB0530CFCF
PRP: Verified
PRP without proof (not generated)
2017-10-13Oliver KruseC-PRP
M2426887/2271566233/30439395225817 : 14BEEBCB0530CFCF
PRP: Verified
PRP without proof (not generated)
2008-09-07Will EdgingtonF
Factor: 30439395225817