sub·mul·ti·ple /-ˈmʌltəpəl/
約數
Sub·mul·ti·ple n. Math. A number or quality which is contained in another an exact number of times, or is an aliquot part of it; thus, 7 is the submultiple of 56, being contained in it eight times.
Sub·mul·ti·ple, a. Math. Of or pertaining to a submultiple; being a submultiple; as, a submultiple number; submultiple ratio.
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