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
8333231
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
52666019931032.3old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-14Oliver KruseD57FE93CF76CFF611111205453
Verified
PRP without proof (not generated)
2020-04-22ATHD57FE93CF76CFF611225109353
History
DateUserTypeResult
2024-05-10Stef42NF-PM1B1=1025000, B2=1519818300
2020-04-22ATHC-PRPM8333231/5266601993 : D57FE93CF76CFF61
2018-10-14Oliver KruseC-PRPM8333231/5266601993 : D57FE93CF76CFF61