256/245

Interval information

Ratio	256/245
Factorization	28 × 5-1 × 7-2
Monzo	[8 0 -1 -2⟩
Size in cents	76.03447¢
Name	septimal minor semitone
Color name	rrg1, rurugu unison
FJS name	[math]\displaystyle{ \text{P1}_{5,7,7} }[/math]
Special properties	reduced, reduced subharmonic
Tenney height (log2 nd)	15.9366
Weil height (log2 max(n, d))	16
Wilson height (sopfr(nd))	35
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256/245, the septimal minor semitone, is the amount by which two 8/7s exceed a 5/4. It exceeds 25/24 by 6144/6125 and 24/23 by 736/735. It also falls short of 21/20 by 1029/1024.