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
14081Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
422431618.7old
6147021201802533568519131177023932105.62013-03-10 19:23:37
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 KruseEA8788275F2636422013
Verified2017-10-12kkmrkkblmbrbkEA8788275F26364221222113
Verified2020-04-17Oliver KruseE78609EDF991F6322741653
Verified2024-07-01kkmrkkblmbrbkE78609EDF991F6322451353
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M14081/422431/61470212018025335685191311770239 : E78609EDF991F632
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
M14081/422431/61470212018025335685191311770239 : E78609EDF991F632
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M14081/422431/61470212018025335685191311770239 : EA8788275F263642
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14081/422431/61470212018025335685191311770239 : EA8788275F263642
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14081/422431/61470212018025335685191311770239 : EA8788275F263642
PRP without proof (not generated)
2013-03-10BloodIceF-ECM
Factor: 61470212018025335685191311770239