320/297, the undecimal supraminor second is an interval which is 9/8 flat of 40/33. It represents the fourth complement of 99/80 and is about 129.1¢. It is 2080/2079 sharp of 14/13.

Interval information
Ratio 320/297
Factorization 26 × 3-3 × 5 × 11-1
Monzo [6 -3 1 0 -1
Size in cents 129.1308¢
Name undecimal supraminor second
Color name 1uy2, luyo 2nd
FJS name [math]\displaystyle{ \text{M2}^{5}_{11} }[/math]
Special properties reduced
Tenney norm (log2 nd) 16.5362
Weil norm (log2 max(n, d)) 16.6439
Wilson norm (sopfr(nd)) 37
Open this interval in xen-calc

See also