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Interval information
Ratio 51/40
Factorization 2-3 × 3 × 5-1 × 17
Monzo [-3 1 -1 0 0 0 1
Size in cents 420.5967¢
Name septendecimal major third
Color name 17og4, sogu 4th
FJS name [math]\text{d4}^{17}_{5}[/math]
Special properties reduced
Tenney height (log2 nd) 10.9944
Weil height (log2 max(n, d)) 11.3449
Wilson height (sopfr (nd)) 31
Harmonic entropy
(Shannon, [math]\sqrt{n\cdot d}[/math])
~4.57659 bits

[sound info]
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In 17-limit just intonation, 51/40 is the septendecimal major third. Although technically a type of supermajor third, there's already a septendecimal supermajor third in the form of 22/17, while 51/40 itself is the fifth complement of 20/17- the septendecimal minor third.

It is approximated by:

See also