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

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MnDetails
2487341
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
497468201928.9old
630540943511135.92008-07-14 20:24:16
ECM
DigitsB1Curves
2550000176 / 280
Estimated T-Level: 23.1
TF below 2^72 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 Kruse357C297DEAFFBF2928166053
Verified
PRP without proof (not generated)
2017-11-29storm5510357C297DEAFFBF292237564153
History
DateUserTypeResult
2022-08-19USAFSSNF-PM1B1=224000, B2=203668920
2017-11-29storm5510C-PRPM2487341/497468201/63054094351 : 357C297DEAFFBF29
2017-10-14Oliver KruseC-PRPM2487341/497468201/63054094351 : 357C297DEAFFBF29
2008-07-14George WoltmanF-ECMFactor: 63054094351