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

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MnStatusDetails
14419Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
439058551928.7old
139463970049141341912063.62008-08-26 19:58:43
142619494911352278496613414712993.52009-07-08 13:19:42
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001263 / 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 KruseA70E9D9CBDFB88B13013
Verified2017-10-02kkmrkkblmbrbkA70E9D9CBDFB88B13013
Verified2017-12-07ATHA70E9D9CBDFB88B13281113
Verified2020-04-17Oliver Kruse0F788E281FC2DB903464253
Verified2024-07-01kkmrkkblmbrbk0F788E281FC2DB903623853
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M14419/13946397004914134191/14261949491135227849661341471/439058551 : 0F788E281FC2DB90
PRP: Verified
PRP without proof (small exponent)
2023-11-30-Anonymous-NF-PM1
B1=100000000000, B2=122815096988293710
2022-01-25Ethan O'ConnorNF-PM1
B1=2000000000, B2=20962314425952900
2022-01-24Ethan O'ConnorNF-PM1
B1=2000000000, B2=2280845250
2020-04-17Oliver KruseC-PRP
M14419/439058551/13946397004914134191/14261949491135227849661341471 : 0F788E281FC2DB90
PRP: Verified
PRP without proof (small exponent)
2019-09-04Bigos2F-ECM
Factor: 439058551 / (ECM curve 1, B1=3000000, B2=300000000)
2017-12-07ATHC-PRP
M14419/439058551/13946397004914134191/14261949491135227849661341471 : A70E9D9CBDFB88B1
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M14419/439058551/13946397004914134191/14261949491135227849661341471 : A70E9D9CBDFB88B1
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14419/439058551/13946397004914134191/14261949491135227849661341471 : A70E9D9CBDFB88B1
PRP without proof (not generated)
2009-07-08Rob_DeeF-ECM
Factor: 14261949491135227849661341471
2008-08-26-Anonymous-F-ECM
Factor: 13946397004914134191