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<- 24afdo 25afdo 26afdo ->
Prime factorization 52
Fifth 38/25 (724.885c)
Dual sharp fifth 38/25 (724.885c)
Dual flat fifth 37/25 (678.716c)

25afdo (arithmetic frequency division of the octave), or 25odo (otonal division of the octave), divides the octave into 25 parts of 1/25 each. As a scale it may be known as mode 25 of the harmonic series or the Over-25 scale.