8/1 is the 8th harmonic, or three octaves.

Interval information
Ratio 8/1
Factorization 23
Monzo [3
Size in cents 3600¢
Names 8th harmonic,
three octaves
Color name c3w1, tricowa unison
FJS name [math]\displaystyle{ \text{P22} }[/math]
Special properties harmonic
Tenney norm (log2 nd) 3
Weil norm (log2 max(n, d)) 6
Wilson norm (sopfr(nd)) 6

[sound info]
Open this interval in xen-calc

See also