2190edo

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Revision as of 22:15, 4 October 2022 by Plumtree (talk | contribs) (Infobox ET added)
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← 2189edo 2190edo 2191edo →
Prime factorization 2 × 3 × 5 × 73
Step size 0.547945 ¢ 
Fifth 1281\2190 (701.918 ¢) (→ 427\730)
Semitones (A1:m2) 207:165 (113.4 ¢ : 90.41 ¢)
Consistency limit 15
Distinct consistency limit 15

The 2190 equal division divides the octave into 2190 equal parts of 0.5479 cents each. It is is a very strong 13-limit system; no smaller division has a smaller 13-limit relative error, and nothing beats it until 2684. A basis for the 13-limit commas is {9801/9800, 10648/10647, 105644/105625, 140625/140608, 196625/196608}; also tempered out are 123201/123200 and 151263/151250.

2190 factors as 2 * 3 * 5 * 73; among its divisors is the Woolhouse unit system, 730.