160/81

160/81 is the inversion of the syntonic comma, 81/80. As such, it is very near a full octave.

Interval information

Ratio	160/81
Factorization	25 × 3-4 × 5
Monzo	[5 -4 1⟩
Size in cents	1178.494¢
Name	"syntonical" diminished octave
Color name	y8, yo octave
FJS name	[math]\displaystyle{ \text{P8}^{5} }[/math]
Special properties	reduced
Tenney norm (log2 nd)	13.6618
Weil norm (log2 max(n, d))	14.6439
Wilson norm (sopfr(nd))	27
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