Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnDetails
5208673
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 270
TF target 266
Factored
FactorDigitsBitsDate
7863045589503317111859.4old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-11-22storm5510230AA796A24BFF601454905553
Verified
PRP without proof (not generated)
2018-01-23kkmrkkblmbrbk230AA796A24BFF601223889253
History
DateUserTypeResult
2025-03-08Sid & AndyNFno factor TF: 68-70
2024-09-19cramsey87NF-PM1B1=300000, B2=403746090
2023-05-11This -Anonymous-NF-PM1B1=50000, B2=1000000
2018-01-23kkmrkkblmbrbkC-PRPM5208673/786304558950331711 : 230AA796A24BFF60
2017-11-22storm5510C-PRPM5208673/786304558950331711 : 230AA796A24BFF60