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
2491189
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
142296715691133.7old
162764676608653271753.92014-10-16 11:44:30
ECM
DigitsB1Curves
2550000121 / 280
Estimated T-Level: 22.2 ⓘ
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 Kruse113E58B394BE1F2D2184939153
Verified
PRP without proof (not generated)
2017-10-15Yaroslav Berezhko13BA2CD5202312642013
Verified
PRP without proof (not generated)
2017-11-30storm5510113E58B394BE1F2D230277853
Verified
PRP without proof (not generated)
2017-12-04kkmrkkblmbrbk13BA2CD520231264256908313
History
DateUserTypeResult
2019-07-04alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-12-04kkmrkkblmbrbkC-PRPM2491189/14229671569/16276467660865327 : 13BA2CD520231264
2017-11-30storm5510C-PRPM2491189/14229671569/16276467660865327 : 113E58B394BE1F2D
2017-10-15Yaroslav BerezhkoC-PRPM2491189/14229671569/16276467660865327 : 13BA2CD520231264
2017-10-14Oliver KruseC-PRPM2491189/14229671569/16276467660865327 : 113E58B394BE1F2D
2014-10-16TJAOIFFactor: 16276467660865327