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
2487923
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
4975847722.2old
14669440867991340.42008-07-14 20:24:16
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000329 / 1566
Estimated T-Level: 31.1
TF below 2^98 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 Kruse9EDBC717A67B0DCD299159853
Verified
PRP without proof (not generated)
2017-11-29storm55109EDBC717A67B0DCD2190329453
History
DateUserTypeResult
2022-08-19USAFSSNF-PM1B1=224000, B2=203668920
2017-11-29storm5510C-PRPM2487923/4975847/1466944086799 : 9EDBC717A67B0DCD
2017-10-14Oliver KruseC-PRPM2487923/4975847/1466944086799 : 9EDBC717A67B0DCD
2008-07-14George WoltmanF-ECMFactor: 1466944086799