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
14143Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
39943606766711341.9old
6971929010270822909532169.22008-08-29 02:24:34
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 Kruse35905011FB80691C2013
Verified2017-10-12kkmrkkblmbrbk35905011FB80691C2312113
Verified2020-04-17Oliver Kruse27AA50ECC691E41221223453
Verified2024-07-01kkmrkkblmbrbk27AA50ECC691E4122819553
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M14143/3994360676671/697192901027082290953 : 27AA50ECC691E412
PRP: Verified
PRP without proof (small exponent)
2023-11-30-Anonymous-NF-PM1
B1=100000000000, B2=122815096988293710
2022-03-19Ethan O'ConnorNF-PM1
B1=10000000000, B2=32989632012677340
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-17Oliver KruseC-PRP
M14143/3994360676671/697192901027082290953 : 27AA50ECC691E412
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M14143/3994360676671/697192901027082290953 : 35905011FB80691C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14143/3994360676671/697192901027082290953 : 35905011FB80691C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M14143/3994360676671/697192901027082290953 : 35905011FB80691C
PRP without proof (not generated)
2008-08-29-Anonymous-F-ECM
Factor: 697192901027082290953