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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MnDetails
5084543
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 270
TF target 265
Factored
FactorDigitsBitsDate
213550807927.7old
2220928382411237.72008-09-08 01:26:20
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)
2017-09-20kkmrkkblmbrbk6E6463915645A19E2013
Verified
PRP without proof (not generated)
2018-05-02storm55106E6463915645A19E2148582213
History
DateUserTypeResult
2025-01-21Sid & AndyNFno factor TF: 68-70
2025-01-14Sid & AndyNF-PM1B1=3600000, B2=9211762560
2023-05-11This -Anonymous-NF-PM1B1=50000, B2=1000000
2018-05-02storm5510C-PRP
M5084543/213550807/222092838241 : 6E6463915645A19E
2017-09-20kkmrkkblmbrbkC-PRPM5084543/213550807/222092838241 : 6E6463915645A19E
2008-09-08Will EdgingtonFFactor: 222092838241