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
1990433Factored
FactorDigitsBitsDate
13853413691030.4old
50772267431593854107032272.12021-03-02 18:31:31
ECM
DigitsB1Curves
2550000280 / 280
3025000058 / 640
Estimated T-Level: 25.5
TF below 2^80 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-05Oliver Kruse09EAAFD5C4CC8E161013
Verified (Factored)2017-11-12kkmrkkblmbrbk09EAAFD5C4CC8E161157245113
Verified2021-03-03riccardo uberti8B69A612FD8AAD762130468453
History
DateUserTypeResult
2021-03-03riccardo ubertiNF-PM1
B1=5000000, B2=100000000, E=12
2021-03-03Eric LehmerCERT
PRP Certification
Proof certified good
2021-03-03riccardo ubertiC-PRP
M1990433/1385341369/5077226743159385410703 : 8B69A612FD8AAD76
PRP proof power = 7
PRP: Verified
Proof certified good
2021-03-02_p95holder_F-ECM
Factor: 5077226743159385410703 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-12kkmrkkblmbrbkC-PRP
M1990433/1385341369 : 09EAAFD5C4CC8E16
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1990433/1385341369 : 09EAAFD5C4CC8E16
PRP: Verified (Factored)
PRP without proof (not generated)