Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
2481797
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
1412564597033771547.0old
ECM
DigitsB1Curves
2550000121 / 280
Estimated T-Level: 22.2
TF below 2^69 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-14Oliver Kruse9C3EF4EE506FB46E137184453
Verified
PRP without proof (not generated)
2017-11-29storm55109C3EF4EE506FB46E1137892453
History
DateUserTypeResult
2023-03-19Denial140NF-PM1B1=1000000, B2=6543255810
2022-08-18USAFSSNF-PM1B1=224000, B2=203668920
2017-11-29storm5510C-PRPM2481797/141256459703377 : 9C3EF4EE506FB46E
2017-10-14Oliver KruseC-PRPM2481797/141256459703377 : 9C3EF4EE506FB46E