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
13457Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
61201667336171342.5old
24392360846271611651.12008-08-29 02:24:32
211482377316672046332064.22008-08-26 19:58:40
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001334 / 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 Kruse749C5709F6497E283013
Verified2017-10-02kkmrkkblmbrbk749C5709F6497E283013
Verified2017-12-07ATH749C5709F6497E283941113
Verified2020-04-17Oliver Kruse432910180380E13D3444253
Verified2024-07-01kkmrkkblmbrbk432910180380E13D3919153
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M13457/21148237731667204633/2439236084627161/6120166733617 : 432910180380E13D
PRP: Verified
PRP without proof (small exponent)
2024-01-29-Anonymous-NF-PM1
B1=100000000000, B2=122154521813133810
2023-05-19JacobZNF-PM1
B1=8200000000, B2=35024272926292650
2022-02-05JossNF-PM1
B1=1000000, B2=2389799412000
2020-04-17Oliver KruseC-PRP
M13457/6120166733617/2439236084627161/21148237731667204633 : 432910180380E13D
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M13457/6120166733617/2439236084627161/21148237731667204633 : 749C5709F6497E28
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M13457/6120166733617/2439236084627161/21148237731667204633 : 749C5709F6497E28
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13457/6120166733617/21148237731667204633/2439236084627161 : 749C5709F6497E28
PRP without proof (not generated)
2008-08-29-Anonymous-F-PM1
Factor: 2439236084627161
2008-08-26-Anonymous-F-ECM
Factor: 21148237731667204633