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
2507767
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
981289227111136.5old
ECM
DigitsB1Curves
2550000146 / 280
Estimated T-Level: 22.6
TF below 2^70 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 Kruse4B35CC76F56B61C51240230053
Verified
PRP without proof (not generated)
2017-11-30storm55104B35CC76F56B61C5179367653
History
DateUserTypeResult
2022-08-20USAFSSNF-PM1B1=240000, B2=199861200
2017-11-30storm5510C-PRPM2507767/98128922711 : 4B35CC76F56B61C5
2017-10-14Oliver KruseC-PRPM2507767/98128922711 : 4B35CC76F56B61C5