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

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Exponent Range:










MnStatusDetails
14437Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
831993248989658571756.22008-08-29 02:24:34
324954284355338597772064.8old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001266 / 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 KruseE226B0C6B7D2BDAA2013
Verified2017-10-12kkmrkkblmbrbkE226B0C6B7D2BDAA21228913
Verified2020-04-17Oliver Kruse761F549360266E542511053
Verified2024-07-01kkmrkkblmbrbk761F549360266E5421359753
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M14437/32495428435533859777/83199324898965857 : 761F549360266E54
PRP: Verified
PRP without proof (small exponent)
2023-11-30-Anonymous-NF-PM1
B1=100000000000, B2=122815096988293710
2022-02-18Ethan O'ConnorNF-PM1
B1=2000000000, B2=31239752047063560
2022-01-24Ethan O'ConnorNF-PM1
B1=2000000000, B2=2140598220
2020-04-17Oliver KruseC-PRP
M14437/83199324898965857/32495428435533859777 : 761F549360266E54
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M14437/83199324898965857/32495428435533859777 : E226B0C6B7D2BDAA
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14437/32495428435533859777/83199324898965857 : E226B0C6B7D2BDAA
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14437/32495428435533859777/83199324898965857 : E226B0C6B7D2BDAA
PRP without proof (not generated)
2008-08-29-Anonymous-F-ECM
Factor: 83199324898965857