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
8291573
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
49749439825.6old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-09-30rucioB06B9FC9A8CF0702199676253
Verified
PRP without proof (not generated)
2020-04-21Luigi MorelliB06B9FC9A8CF07021686683453
History
DateUserTypeResult
2024-04-07Stef42NF-PM1B1=980000, B2=2281600230
2020-04-21Luigi MorelliC-PRPM8291573/49749439 : B06B9FC9A8CF0702
2018-09-30rucioC-PRPM8291573/49749439 : B06B9FC9A8CF0702