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
2564701
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
384705151928.5old
ECM
DigitsB1Curves
2550000133 / 280
Estimated T-Level: 22.4
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)
2017-10-15Oliver Kruse45598ADB62DD84B0176408553
Verified
PRP without proof (not generated)
2017-12-01storm551045598ADB62DD84B017634153
History
DateUserTypeResult
2022-08-29USAFSSNF-PM1B1=480000, B2=446264910
2017-12-01storm5510C-PRPM2564701/384705151 : 45598ADB62DD84B0
2017-10-15Oliver KruseC-PRPM2564701/384705151 : 45598ADB62DD84B0