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

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Exponent Range:










MnStatusDetails
14071Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1941799720.9old
71710318731032.72008-08-26 19:58:41
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001323 / 9201
Estimated T-Level: 40.7
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseB011522A1F3004BF2013
Verified2017-10-12kkmrkkblmbrbkB011522A1F3004BF2801413
Verified2020-04-17Oliver Kruse0A7390D9AF4CCF792743353
Verified2024-07-01kkmrkkblmbrbk0A7390D9AF4CCF7921116853
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M14071/1941799/7171031873 : 0A7390D9AF4CCF79
PRP: Verified
PRP without proof (small exponent)
2024-01-29-Anonymous-NF-PM1
B1=100000000000, B2=122154521813133810
2023-05-23JacobZNF-PM1
B1=7800000000, B2=32022192391138950
2023-02-11USAFSSNF-PM1
B1=30000000, B2=2010341563230
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-17Oliver KruseC-PRP
M14071/1941799/7171031873 : 0A7390D9AF4CCF79
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M14071/1941799/7171031873 : B011522A1F3004BF
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14071/1941799/7171031873 : B011522A1F3004BF
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14071/1941799/7171031873 : B011522A1F3004BF
PRP without proof (not generated)
2008-08-26-Anonymous-F
Factor: 7171031873