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
2623073
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
15738439823.9old
ECM
DigitsB1Curves
2550000141 / 280
Estimated T-Level: 22.5
TF below 2^70 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-17Oliver KruseDE4AEAC46194B1CF1149158453
Verified
PRP without proof (not generated)
2017-12-02storm5510DE4AEAC46194B1CF157840653
History
DateUserTypeResult
2019-07-04alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-12-02storm5510C-PRP
M2623073/15738439 : DE4AEAC46194B1CF
2017-10-17Oliver KruseC-PRP
M2623073/15738439 : DE4AEAC46194B1CF