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
2506129
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
55134839825.7old
ECM
DigitsB1Curves
2550000161 / 280
Estimated T-Level: 22.9
TF below 2^71 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 Kruse89C6013262EBFE961112198553
Verified
PRP without proof (not generated)
2017-11-30storm551089C6013262EBFE96133977153
History
DateUserTypeResult
2022-08-20USAFSSNF-PM1B1=240000, B2=199861200
2017-11-30storm5510C-PRPM2506129/55134839 : 89C6013262EBFE96
2017-10-14Oliver KruseC-PRPM2506129/55134839 : 89C6013262EBFE96