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
556069Factored
FactorDigitsBitsDate
35588417825.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000350 / 640
Estimated T-Level: 27.7
TF below 2^87 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-27Oliver Kruse229B15F2B06CDAA11013
Verified2017-09-28Oliver Kruse229B15F2B06CDAA11013
Verified2017-11-09kkmrkkblmbrbk229B15F2B06CDAA1121283613
Unverified (Reliable)2020-04-19Oliver Kruse75E991AF6EEDEE__147660253
History
DateUserTypeResult
2022-12-07USAFSSNF-PM1
B1=2000000, B2=6281645370
2020-04-19Oliver KruseC-PRP
M556069/35588417 : 75E991AF6EEDEE__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-11-09kkmrkkblmbrbkC-PRP
M556069/35588417 : 229B15F2B06CDAA1
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M556069/35588417 : 229B15F2B06CDAA1
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M556069/35588417 : 229B15F2B06CDAA1
PRP: Unverified (Reliable)
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=1500000, B2=50000000, E=12