Factor (chord)
![Fifth (G), in red, of a C major chord ( Play ).](/Images/godic/202501/04/Fifth_of_a_major_chord_on_C2528.png")
![Seventh (F) of a third inversion dominant seventh chord in C (G7) ( Play ).](/Images/godic/202501/04/Third_inversion_chord_in_C2529.png")
![Dominant thirteenth extended chord: C E G B♭ D F A play . The upper structure or extensions, i.e. notes beyond the seventh, in red (ninth, eleventh, thirteenth).](/Images/godic/202501/04/Upper-structure_triad2529.png")
In music, a factor or chord factor is a member or component of a chord. These are named root, third, fifth, sixth, seventh, ninth, eleventh, thirteenth, and so on, for their generic interval above the root. In harmony, the consonance and dissonance of a chord factor and a nonchord tone are distinguished, respectively.