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
5104453
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 270
TF target 265
Factored
FactorDigitsBitsDate
122506873926.9old
6635679358438631549.22014-04-25 10:29:20
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkE95550B0732445C12013
Verified
PRP without proof (not generated)
2018-05-06storm5510E95550B0732445C12444458113
History
DateUserTypeResult
2025-02-22Sid & AndyNF-PM1B1=3600000, B2=8929750830
2025-01-27Sid & AndyNFno factor TF: 68-70
2023-05-11This -Anonymous-NF-PM1B1=50000, B2=1000000
2018-05-06storm5510C-PRPM5104453/122506873/663567935843863 : E95550B0732445C1
2017-09-20kkmrkkblmbrbkC-PRPM5104453/122506873/663567935843863 : E95550B0732445C1
2014-04-25TJAOIFFactor: 663567935843863