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
2507629
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
9975524297860971549.8old
ECM
DigitsB1Curves
2550000173 / 280
Estimated T-Level: 23.1
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 KruseB0D07C72F7ECF6081147450253
Verified
PRP without proof (not generated)
2017-11-30storm5510B0D07C72F7ECF6081103146553
History
DateUserTypeResult
2022-08-20USAFSSNF-PM1B1=240000, B2=199861200
2017-11-30storm5510C-PRPM2507629/997552429786097 : B0D07C72F7ECF608
2017-10-14Oliver KruseC-PRPM2507629/997552429786097 : B0D07C72F7ECF608