Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
13163Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
737129619.5old
41019480964731341.92008-08-26 19:58:40
8375795736183844164312169.52008-08-29 02:24:32
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001385 / 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 Kruse1329A41EB0A04A693013
Verified2017-10-02kkmrkkblmbrbk1329A41EB0A04A693013
Verified2017-12-07ATH1329A41EB0A04A693938213
Verified2020-04-17Oliver KruseFEC31C08C4DF8B953708653
Verified2024-07-01kkmrkkblmbrbkFEC31C08C4DF8B95382553
P-1 factors
DateFactorB1B2
2023-10-10837579573618384416431100000000000122154521813133808
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M13163/4101948096473/737129/837579573618384416431 : FEC31C08C4DF8B95
PRP: Verified
PRP without proof (small exponent)
2023-10-10-Anonymous-F-PM1
Factor: 837579573618384416431 / (P-1, B1=100000000000, B2=122154521813133810)
2023-05-17JacobZNF-PM1
B1=8400000000, B2=34523926202766000
2022-02-05JossNF-PM1
B1=1000000, B2=3910366209750
2020-04-17Oliver KruseC-PRP
M13163/737129/4101948096473/837579573618384416431 : FEC31C08C4DF8B95
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M13163/737129/4101948096473/837579573618384416431 : 1329A41EB0A04A69
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M13163/737129/4101948096473/837579573618384416431 : 1329A41EB0A04A69
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13163/737129/4101948096473/837579573618384416431 : 1329A41EB0A04A69
PRP without proof (not generated)
2008-08-29-Anonymous-F-ECM
Factor: 837579573618384416431
2008-08-26-Anonymous-F
Factor: 4101948096473