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
347
Composite, with 1 known prime factor. Cofactor is PRP (Probable-Prime).
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
141431891129526324196392373.6old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2024-09-06George WoltmanPRP_PRP_PRP_PRP_1013
History
DateUserTypeResult
2024-09-06George WoltmanP-PRPM347/14143189112952632419639
PRP Cofactor