Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
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Finding World Record Primes Since 1996

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MnStatusDetails
17147257Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
514417711928.9old
2888626914231238.12008-09-08 13:25:34
2101235472564053414572167.52022-09-26 09:29:22
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-09-13ThomRuley3BA42DB247EE81253892980853
History
DateUserTypeResult
2024-09-13BigRichCERT
PRP Certification
Proof certified good
2024-09-13ThomRuleyC-PRP
M17147257/514417711/288862691423/210123547256405341457 : 3BA42DB247EE8125
PRP proof power = 8
PRP: Verified
Proof certified good
2023-11-08alpertronNF-PM1
B1=560000, B2=174277950
2022-09-26TJAOIF
Factor: 210123547256405341457 / TF: 67-68
2008-09-08Will EdgingtonF
Factor: 288862691423