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
4934399Factored
FactorDigitsBitsDate
9868799723.2old
19702012848229994885357243692890.72019-08-14 13:30:47
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-20kkmrkkblmbrbk83CC8D7A162DF7B31013
Verified (Factored)2018-04-12ATH83CC8D7A162DF7B31295663913
Verified2019-08-17fre_games9014DA9D4C16B5CC2439446953
Verified2019-08-18marssystems9014DA9D4C16B5CC2410970953
History
DateUserTypeResult
2023-09-23USAFSSNF-PM1
B1=256000, B2=105522060
2019-08-18marssystemsC-PRP
M4934399/9868799/1970201284822999488535724369 : 9014DA9D4C16B5CC
PRP: Verified
PRP without proof (not generated)
2019-08-17fre_gamesC-PRP
M4934399/9868799/1970201284822999488535724369 : 9014DA9D4C16B5CC
PRP: Verified
PRP without proof (not generated)
2019-08-14ATHF-ECM
Factor: 1970201284822999488535724369 / (ECM curve 2, B1=50000, B2=5000000, Sigma=7182673851554214)
2018-04-12ATHC-PRP
M4934399/9868799 : 83CC8D7A162DF7B3
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M4934399/9868799 : 83CC8D7A162DF7B3
PRP: Verified
PRP without proof (not generated)