Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
14149Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
311279618.2old
424471618.72008-08-26 19:58:42
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001267 / 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 Kruse97DA67C90CA66DB12013
Verified2017-10-12kkmrkkblmbrbk97DA67C90CA66DB1228413
Verified2020-04-17Oliver Kruse53D295F23872F47621219953
Verified2024-07-01kkmrkkblmbrbk53D295F23872F47621288353
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M14149/311279/424471 : 53D295F23872F476
PRP: Verified
PRP without proof (small exponent)
2024-01-29-Anonymous-NF-PM1
B1=100000000000, B2=122154521813133810
2023-05-23JacobZNF-PM1
B1=7700000000, B2=32522539163164050
2023-02-11USAFSSNF-PM1
B1=60000000, B2=4543108760190
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-17Oliver KruseC-PRP
M14149/311279/424471 : 53D295F23872F476
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M14149/311279/424471 : 97DA67C90CA66DB1
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14149/311279/424471 : 97DA67C90CA66DB1
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14149/311279/424471 : 97DA67C90CA66DB1
PRP without proof (not generated)
2008-08-26-Anonymous-F
Factor: 424471