Marin Mersenne 2^P-1
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MnStatusDetails
15208483Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
295644696939191444.7old
11630841247760635737772270.02023-05-12 04:03:12
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-06-28PerigC0A491ABC6AC0E762586267253
P-1 factors
DateFactorB1B2
2023-05-121163084124776063573777400000400000
History
DateUserTypeResult
2023-06-28George WoltmanCERT
PRP Certification
Proof certified good
2023-06-28PerigC-PRP
M15208483/29564469693919/1163084124776063573777 : C0A491ABC6AC0E76
PRP proof power = 8
PRP: Verified
Proof certified good
2023-05-29nordiNF-PM1
B1=400000, B2=407843436
2023-05-12nordiF-PM1
Factor: 1163084124776063573777 / (P-1, B1=400000, B2=400000)
2022-04-24Lisander ViaeneNF
no factor from 2^67 to 2^68