128/105

Interval information

Ratio	128/105
Factorization	27 × 3-1 × 5-1 × 7-1
Monzo	[7 -1 -1 -1⟩
Size in cents	342.9054¢
Names	quasi-tempered 2/7-octave, 105th subharmonic
Color name	rg3, rugu 3rd
FJS name	[math]\displaystyle{ \text{m3}_{5,7} }[/math]
Special properties	reduced, reduced subharmonic
Tenney height (log2 nd)	13.7142
Weil height (log2 max(n, d))	14
Wilson height (sopfr(nd))	29
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128/105 is a 7-limit interval. As the fifth complement of 315/256, it is an incredibly good approximation to the lesser tridecimal neutral third of 39/32 (off by only a schismina), and approximates 2\7 very accurately (off by an akjaysma).