Prima

1 step of 12276edo, useful for measurement of 11-limit intervals and commas. Given that 12276edo factors as 2² × 3² × 11 × 31, a prima is a whole number division of one degree of 12edo, 22edo, 31edo, 99edo and 198edo. The Pythagorean comma is represented by 240 prima, and the syntonic comma by 220. A prima is almost exactly three tuning units.