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
12919Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
60060947771032.5old
1113017324891236.72008-08-26 19:58:39
6671823506631239.32008-08-26 19:58:39
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001390 / 9201
Estimated T-Level: 40.8
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 Kruse12279B86EDF074913013
Verified2017-10-12kkmrkkblmbrbk12279B86EDF074913153713
Verified2020-04-17Oliver Kruse4E2F730AAD8354BF3606953
Verified2024-07-01kkmrkkblmbrbk4E2F730AAD8354BF317153
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M12919/111301732489/6006094777/667182350663 : 4E2F730AAD8354BF
PRP: Verified
PRP without proof (small exponent)
2023-10-10Anton RepkoNF-PM1
B1=100000000000, B2=122154521813133810
2023-05-15JacobZNF-PM1
B1=8600000000, B2=36024966470342850
2022-02-05JossNF-PM1
B1=1000000, B2=3910366209750
2020-04-17Oliver KruseC-PRP
M12919/6006094777/111301732489/667182350663 : 4E2F730AAD8354BF
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M12919/6006094777/111301732489/667182350663 : 12279B86EDF07491
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M12919/6006094777/111301732489/667182350663 : 12279B86EDF07491
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M12919/6006094777/111301732489/667182350663 : 12279B86EDF07491
PRP without proof (not generated)
2008-08-26-Anonymous-F
Factor: 667182350663
2008-08-26-Anonymous-F
Factor: 111301732489