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
8331347
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
216615023927.7old
817076695165271446.22008-09-08 04:30:33
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-15Oliver KruseD470EB42DD80C3E22426568153
Verified
PRP without proof (not generated)
2020-04-22Wentao HuangD470EB42DD80C3E22251718153
History
DateUserTypeResult
2024-05-10Stef42NF-PM1B1=1025000, B2=1519818300
2020-04-22Wentao HuangC-PRPM8331347/216615023/81707669516527 : D470EB42DD80C3E2
2018-10-15Oliver KruseC-PRPM8331347/216615023/81707669516527 : D470EB42DD80C3E2
2008-09-08Will EdgingtonFFactor: 81707669516527