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
2568719
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
34523583371031.7old
ECM
DigitsB1Curves
255000098 / 280
Estimated T-Level: 21.8
TF below 2^67 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 KruseDAC321B240A082841253612553
Verified
PRP without proof (not generated)
2017-12-01storm5510DAC321B240A08284128165453
History
DateUserTypeResult
2022-08-31USAFSSNF-PM1B1=480000, B2=423235890
2017-12-01storm5510C-PRPM2568719/3452358337 : DAC321B240A08284
2017-10-15Oliver KruseC-PRPM2568719/3452358337 : DAC321B240A08284