Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
489457Factored
FactorDigitsBitsDate
48593326944575592424354092582.02007-12-28 16:32:33
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6 ⓘ
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-27Oliver Kruse6E0A4D2488EC8CEE1013
Verified2017-09-27Oliver Kruse6E0A4D2488EC8CEE1013
Verified2017-11-07kkmrkkblmbrbk6E0A4D2488EC8CEE134468513
Unverified (Reliable)2020-04-18Oliver KruseF414F13CB98C8E__127030453
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-18Oliver KruseC-PRP
M489457/4859332694457559242435409 : F414F13CB98C8E__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-11-07kkmrkkblmbrbkC-PRP
M489457/4859332694457559242435409 : 6E0A4D2488EC8CEE
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-27Oliver KruseC-PRP
M489457/4859332694457559242435409 : 6E0A4D2488EC8CEE
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M489457/4859332694457559242435409 : 6E0A4D2488EC8CEE
PRP: Unverified (Reliable)
PRP without proof (not generated)
2007-12-28Chad DavisF-ECM
Factor: 4859332694457559242435409