Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
10861577Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
65169463826.0old
161620265771133.92008-09-08 06:43:44
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-03-14Luigi Morelli2E167DB40AB4F3562801312653
History
DateUserTypeResult
2021-03-14GregCERT
PRP Certification
Proof certified good
2021-03-14Luigi MorelliC-PRP
M10861577/65169463/16162026577 : 2E167DB40AB4F356
PRP proof power = 8
PRP: Verified
Proof certified good
2008-09-08Will EdgingtonF
Factor: 16162026577