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
8321213
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
49927279825.6old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-12marcomich169A1F3321D0739A159397453
Verified
PRP without proof (not generated)
2020-04-18marssystems169A1F3321D0739A1200425553
History
DateUserTypeResult
2024-06-10Stef42NF-PM1B1=1375000, B2=2725257990
2020-04-18marssystemsC-PRPM8321213/49927279 : 169A1F3321D0739A
2018-10-12marcomichC-PRPM8321213/49927279 : 169A1F3321D0739A