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
496901Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
146298019754871443.7old
335915054368361211754.92014-05-31 14:30:37
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 KruseB7EFEE6C82E044392013
Verified2017-11-03kkmrkkblmbrbkB7EFEE6C82E04439225929513
Verified2020-04-18Oliver Kruse0AEF11DEF2580A1C2667153
Verified2024-12-03kkmrkkblmbrbk0AEF11DEF2580A1C245876053
P-1 factors
DateFactorB1B2
2014-05-31335915054368361212000000
History
DateUserTypeResult
2024-12-03Philippians-NavinCERT
PRP Certification
Proof certified good
2024-12-03kkmrkkblmbrbkC-PRP
M496901/14629801975487/33591505436836121 : 0AEF11DEF2580A1C
PRP proof power = 6
PRP: Verified
Proof certified good
2024-08-02-Anonymous-NF-PM1
B1=61000000, B2=39528958560
2020-04-18Oliver KruseC-PRP
M496901/14629801975487/33591505436836121 : 0AEF11DEF2580A1C
PRP: Verified
PRP without proof (small exponent)
2017-11-03kkmrkkblmbrbkC-PRP
M496901/14629801975487/33591505436836121 : B7EFEE6C82E04439
PRP: Verified
PRP without proof (small exponent)
2017-09-27Oliver KruseC-PRP
M496901/14629801975487/33591505436836121 : B7EFEE6C82E04439
PRP: Verified
PRP without proof (not generated)
2014-05-31BloodIceF-PM1
Factor: 33591505436836121