# Harmonic number (disambiguation)

Look up in Wiktionary, the free dictionary.harmonic number |

In number theory, the **harmonic numbers** are the sums of the inverses of integers, forming the harmonic series. **Harmonic number** may also refer to:

- Harmonic, a periodic wave with a frequency that is an integral multiple of the frequency of another wave
- An integer not divisible by any prime other than 2 or 3, as defined by Philippe de Vitry
- Harmonic divisor numbers, also called Ore numbers or Ore's harmonic numbers, positive integers whose divisors have an integral harmonic mean

disambiguation page lists articles associated with the title Harmonic number. If an internal link led you here, you may wish to change the link to point directly to the intended article. |
This