815730721/800000000

Interval information
Ratio	815730721/800000000
Factorization	2-11 × 5-8 × 138
Monzo	[-11 0 -8 0 0 8⟩
Size in cents	33.71158¢
Name	large tridecimal eighth-octave comma
FJS name	[math]\displaystyle{ \text{9d4}^{13,13,13,13,13,13,13,13}_{5,5,5,5,5,5,5,5} }[/math]
Special properties	reduced
Tenney norm (log2 nd)	59.1789
Weil norm (log2 max(n, d))	59.207
Wilson norm (sopfr(nd))	166
Comma size	medium
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815730721/800000000, the large tridecimal eighth-octave comma, is the difference between eight 13/10's and three octaves.

Temperaments

815730721/800000000 is tempered out in low EDOs that are a multiple of 8, along with 214990848/214358881 and 17303/17280, defining various 8th-octave temperaments.