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
7804171
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 267
Factored
FactorDigitsBitsDate
19410827874712198071960.8old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2018-05-13storm55101942CFD43ED5D8501753909053
Verified
PRP without proof (not generated)
2019-10-09marssystems1942CFD43ED5D8501170596253
History
DateUserTypeResult
2024-01-31Stef42NF-PM1B1=843000, B2=1382772300
2019-10-09marssystemsC-PRPM7804171/1941082787471219807 : 1942CFD43ED5D850
2018-05-13storm5510C-PRPM7804171/1941082787471219807 : 1942CFD43ED5D850
1999-04-13-anonymous-FFactor: 1941082787471219807
1998-09-13-anonymous-FFactor: 1941082787471219807
1998-08-16-anonymous-FFactor: 1941082787471219807