Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
13331Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
97290971111033.2old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000003749 / 9201
Estimated T-Level: 42.0
TF below 2^135 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseA6DE94C47F817DDD1013
Verified2017-10-12kkmrkkblmbrbkA6DE94C47F817DDD1356513
Verified2020-04-17Oliver Kruse68B9A36692E399711626253
Verified2024-07-01kkmrkkblmbrbk68B9A36692E3997111037053
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M13331/9729097111 : 68B9A36692E39971
PRP: Verified
PRP without proof (small exponent)
2023-12-19-Anonymous-NF-PM1
B1=100000000000, B2=122154521813133810
2023-05-18JacobZNF-PM1
B1=8300000000, B2=34023579430740900
2022-02-05JossNF-PM1
B1=1000000, B2=3910366209750
2020-04-17Oliver KruseC-PRP
M13331/9729097111 : 68B9A36692E39971
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M13331/9729097111 : A6DE94C47F817DDD
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13331/9729097111 : A6DE94C47F817DDD
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13331/9729097111 : A6DE94C47F817DDD
PRP without proof (not generated)