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
2489453
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
10754436971030.0old
113675195292171443.42008-09-30 14:37:05
ECM
DigitsB1Curves
2550000182 / 280
Estimated T-Level: 23.3
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 Kruse3E0DA591E51C16FB227659753
Verified
PRP without proof (not generated)
2017-11-29storm55103E0DA591E51C16FB224672553
History
DateUserTypeResult
2022-08-19USAFSSNF-PM1B1=224000, B2=203668920
2017-11-29storm5510C-PRPM2489453/1075443697/11367519529217 : 3E0DA591E51C16FB
2017-10-14Oliver KruseC-PRPM2489453/1075443697/11367519529217 : 3E0DA591E51C16FB
2008-09-30markrFFactor: 11367519529217