100/81

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Interval information
Ratio 100/81
Factorization 22 × 3-4 × 52
Monzo [2 -4 2
Size in cents 364.80742¢
Name grave major third
Color name yy3, yoyo 3rd
FJS name [math]\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]\sqrt{n\cdot d}[/math])
~4.55411 bits
open this interval in xen-calc

100/81, the grave major third, is 81/80, a syntonic comma 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.