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
13103Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
20991007824.3old
338398079928.32008-08-26 19:58:39
724849997831031446.02008-08-26 19:58:39
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001386 / 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 Kruse2FD2C9C2A980B9A43013
Verified2017-10-12kkmrkkblmbrbk2FD2C9C2A980B9A431096313
Verified2020-04-17Oliver KruseB509EED58A7F52583762653
Verified2024-07-01kkmrkkblmbrbkB509EED58A7F52583359153
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M13103/20991007/338398079/72484999783103 : B509EED58A7F5258
PRP: Verified
PRP without proof (small exponent)
2023-10-10-Anonymous-NF-PM1
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
M13103/20991007/338398079/72484999783103 : B509EED58A7F5258
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M13103/20991007/338398079/72484999783103 : 2FD2C9C2A980B9A4
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13103/20991007/338398079/72484999783103 : 2FD2C9C2A980B9A4
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13103/20991007/338398079/72484999783103 : 2FD2C9C2A980B9A4
PRP without proof (not generated)
2008-08-26-Anonymous-F
Factor: 72484999783103
2008-08-26-Anonymous-F
Factor: 338398079