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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
13043Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
14089334498410183243218542632890.2old
846806603471731049717134633077552734112.72009-06-22 01:02:25
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001388 / 9201
Estimated T-Level: 40.8
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 Kruse05246AC07C4128372013
Verified2017-10-02kkmrkkblmbrbk05246AC07C4128372013
Verified2017-12-07ATH05246AC07C4128372373813
Verified2020-04-17Oliver Kruse34B8F305946A915521004953
Verified2024-07-01kkmrkkblmbrbk34B8F305946A91552551353
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M13043/1408933449841018324321854263/8468066034717310497171346330775527 : 34B8F305946A9155
PRP: Verified
PRP without proof (small exponent)
2023-10-10-Anonymous-NF-PM1
B1=100000000000, B2=122154521813133810
2023-05-16JacobZNF-PM1
B1=8500000000, B2=33523232658715800
2020-04-17Oliver KruseC-PRP
M13043/1408933449841018324321854263/8468066034717310497171346330775527 : 34B8F305946A9155
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M13043/1408933449841018324321854263/8468066034717310497171346330775527 : 05246AC07C412837
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M13043/1408933449841018324321854263/8468066034717310497171346330775527 : 05246AC07C412837
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13043/1408933449841018324321854263/8468066034717310497171346330775527 : 05246AC07C412837
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13043/1408933449841018324321854263/8468066034717310497171346330775527 : 05246AC07C412837
PRP without proof (not generated)
2009-06-22Rob_DeeF-ECM
Factor: 8468066034717310497171346330775527