SUBMULTIPLE
, the contrary of a multiple, being a number or quantity which is contained exactly a certain number of times in another of the same kind; or it is the same as an aliquot part of it. Thus, 3 is a Submultiple of 21, or an aliquot part of it, because 21 is a multiple of 3.
Submultiple Ratio, is the ratio of a Submultiple or aliquot part, to its multiple; as the ratio of 3 to 21.