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
7883387
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 267
Factored
FactorDigitsBitsDate
318488834811134.9old
10710297681710571649.92008-09-30 23:49:23
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-06-02Oliver KruseCEC3FE0D7A6D02412320442453
Verified
PRP without proof (not generated)
2020-04-23NesowaCEC3FE0D7A6D02412440873553
History
DateUserTypeResult
2024-02-02Stef42NF-PM1B1=950000, B2=1968826860
2020-04-23NesowaC-PRPM7883387/31848883481/1071029768171057 : CEC3FE0D7A6D0241
2018-06-02Oliver KruseC-PRPM7883387/31848883481/1071029768171057 : CEC3FE0D7A6D0241
2008-09-30markrFFactor: 1071029768171057