21/17

21/17 is the septendecimal submajor third. Its octave complement is the septendecimal supraminor sixth 34/21.

Interval information

Ratio	21/17
Factorization	3 × 7 × 17-1
Monzo	[0 1 0 1 0 0 -1⟩
Size in cents	365.8255¢
Name	septendecimal submajor third
FJS name	[math]\displaystyle{ \text{M3}^{7}_{17} }[/math]
Special properties	reduced
Tenney norm (log2 nd)	8.47978
Weil norm (log2 max(n, d))	8.78463
Wilson norm (sopfr(nd))	27
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See: Gallery of Just Intervals