100/81

Interval information

Ratio	100/81
Factorization	22 × 3-4 × 52
Monzo	[2 -4 2⟩
Size in cents	364.8074¢
Name	grave major third
Color name	yy3, yoyo 3rd
FJS name	[math]\displaystyle{ \text{M3}^{5,5} }[/math]
Special properties	reduced
Tenney height (log2 nd)	12.9837
Weil height (log2 max(n, d))	13.2877
Wilson height (sopfr(nd))	26
Harmonic entropy (Shannon, [math]\displaystyle{ \sqrt{nd} }[/math])	~4.24595 bits
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100/81, the (classical) grave major third, is a syntonic comma 81/80 flat of 5/4 and 325/324 sharp of 16/13, as well as being just 1701/1700 flat of the interval 21/17. It is obtained by stacking two 10/9 small whole tones.