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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Exponent Range:





MnDetails
2318297
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 262
Factored
FactorDigitsBitsDate
125188039926.9old
10895995911030.02008-07-14 20:22:59
2224081409931237.72008-07-14 20:22:59
ECM
DigitsB1Curves
2550000280 / 280
30250000122 / 640
Estimated T-Level: 26.0
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-11Oliver Kruse51D3EE6ED2E0A0FA3013
Verified
PRP without proof (not generated)
2017-11-23storm551051D3EE6ED2E0A0FA3177367013
History
DateUserTypeResult
2021-04-09ViliamFNF-PM1B1=5000000, B2=505000000
2018-02-27alpertronNF-PM1B1=500000, B2=15000000, E=12
2017-11-23storm5510C-PRPM2318297/125188039/1089599591/222408140993 : 51D3EE6ED2E0A0FA
2017-10-11Oliver KruseC-PRPM2318297/125188039/1089599591/222408140993 : 51D3EE6ED2E0A0FA
2008-07-14George WoltmanF-ECMFactor: 222408140993
2008-07-14George WoltmanF-ECMFactor: 1089599591