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
5019043
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 270
TF target 265
Factored
FactorDigitsBitsDate
22828899336929347371961.0old
ECM
DigitsB1Curves
255000060 / 280
Estimated T-Level: 21.1
TF below 2^65 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-11-21storm5510EA9685F269A47A111193474353
Verified
PRP without proof (not generated)
2018-01-13kkmrkkblmbrbkEA9685F269A47A111148957153
History
DateUserTypeResult
2025-01-19Sid & AndyNF-PM1B1=5600000, B2=7759443510
2025-01-02Sid & AndyNFno factor TF: 68-70
2024-08-31cramsey87NF-PM1B1=1000000, B2=2020317390
2023-05-11This -Anonymous-NF-PM1B1=50000, B2=1000000
2018-01-13kkmrkkblmbrbkC-PRPM5019043/2282889933692934737 : EA9685F269A47A11
2017-11-21storm5510C-PRPM5019043/2282889933692934737 : EA9685F269A47A11