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
13901Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
14206823823.8old
390304215431135.22008-08-26 19:58:41
1429911534301131547.02008-08-26 19:58:41
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001325 / 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 KruseF3FE0546691BD6113013
Verified2017-10-12kkmrkkblmbrbkF3FE0546691BD6113627513
Verified2020-04-17Oliver KruseFF617CACAC7AD2B03552453
Verified2024-07-01kkmrkkblmbrbkFF617CACAC7AD2B03244653
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M13901/14206823/142991153430113/39030421543 : FF617CACAC7AD2B0
PRP: Verified
PRP without proof (small exponent)
2023-11-30-Anonymous-NF-PM1
B1=100000000000, B2=124499752678561260
2023-05-22JacobZNF-PM1
B1=7900000000, B2=32522539163164050
2023-02-11USAFSSNF-PM1
B1=30000000, B2=2010341563230
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-17Oliver KruseC-PRP
M13901/14206823/39030421543/142991153430113 : FF617CACAC7AD2B0
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M13901/14206823/39030421543/142991153430113 : F3FE0546691BD611
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13901/14206823/39030421543/142991153430113 : F3FE0546691BD611
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13901/14206823/39030421543/142991153430113 : F3FE0546691BD611
PRP without proof (not generated)
2008-08-26-Anonymous-F-PM1
Factor: 142991153430113
2008-08-26-Anonymous-F
Factor: 39030421543