Harmonic limit

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In just intonation, the p-limit or p-prime-limit consists of the ratios of p-smooth numbers, where a p-smooth number is an integer with prime factors no larger than p.

A positive rational number q belongs to the p-limit for a given prime number p if and only if it can be factored into primes (with positive or negative integer exponents) of size less than or equal to p. For any prime number p, the set of all rational numbers in the p-limit defines a finitely generated free abelian group. The rank of this group is equal to π (p), the number of prime numbers less than or equal to p. Hence, for example, the rank of the 7-limit is 4, as it is generated by 2, 3, 5 and 7.

Individual pages of p-limit JI

2-limit 3-limit 5-limit 7-limit 11-limit 13-limit
17-limit 19-limit 23-limit 29-limit 31-limit 37-limit
41-limit 43-limit 47-limit 53-limit 59-limit 61-limit
67-limit 71-limit 73-limit 79-limit 83-limit 89-limit

See also

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