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
6299Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
83711292317831342.9old
1106451027085878457192166.6old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000004706 / 9201
Estimated T-Level: 42.6
TF below 2^136 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseB01E398FFDB246172013
Verified2017-10-12kkmrkkblmbrbkB01E398FFDB246172148113
Verified2020-04-17Oliver KruseA5DC0BFF575339F22606253
Verified2024-02-03Wentao HuangA5DC0BFF575339F22241853
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M6299/8371129231783/110645102708587845719 : A5DC0BFF575339F2
PRP: Verified
PRP without proof (small exponent)
2023-08-03-Anonymous-NF-PM1
B1=39000000000, B2=163113042636343800
2021-08-01ViliamFNF-PM1
B1=500000000, B2=90500000000
2020-04-17Oliver KruseC-PRP
M6299/8371129231783/110645102708587845719 : A5DC0BFF575339F2
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M6299/8371129231783/110645102708587845719 : B01E398FFDB24617
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6299/8371129231783/110645102708587845719 : B01E398FFDB24617
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6299/8371129231783/110645102708587845719 : B01E398FFDB24617
PRP without proof (not generated)