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

PrimeNet Exponent Status

Exponent Range:





MnDetails
3864793
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 264
Factored
FactorDigitsBitsDate
1616231789365802391857.2old
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbk07AC42DD7AEFEAB51013
Verified
PRP without proof (not generated)
2017-12-24storm551007AC42DD7AEFEAB51269006213
History
DateUserTypeResult
2022-05-27JossNF-PM1B1=100000, B2=130364850
2022-03-22JossNF-PM1B1=100000
2022-03-05JossNF-PM1B1=90000
2017-12-24storm5510C-PRPM3864793/161623178936580239 : 07AC42DD7AEFEAB5
2017-09-20kkmrkkblmbrbkC-PRPM3864793/161623178936580239 : 07AC42DD7AEFEAB5
1998-06-28-anonymous-FFactor: 161623178936580239