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
2548499
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
5096999722.3old
65292544391032.62008-07-14 20:24:56
ECM
DigitsB1Curves
2550000129 / 280
Estimated T-Level: 22.3 ⓘ
TF below 2^69 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 Kruse6D00422F37920FAE289200453
Verified
PRP without proof (not generated)
2017-12-01storm55106D00422F37920FAE2104072453
History
DateUserTypeResult
2022-08-26USAFSSNF-PM1B1=300000, B2=259451010
2017-12-01storm5510C-PRP
M2548499/5096999/6529254439 : 6D00422F37920FAE
2017-10-14Oliver KruseC-PRP
M2548499/5096999/6529254439 : 6D00422F37920FAE
2008-07-14George WoltmanF-ECMFactor: 6529254439