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
8331371
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
16662743824.0old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-11ATHB218186BD6496322141748753
Verified
PRP without proof (not generated)
2020-04-29NesowaB218186BD64963221521211853
History
DateUserTypeResult
2024-05-10Stef42NF-PM1B1=1025000, B2=1519818300
2020-04-29NesowaC-PRPM8331371/16662743 : B218186BD6496322
2018-10-11ATHC-PRPM8331371/16662743 : B218186BD6496322