The Collaborative International Dictionary of English v.0.48:

Equimultiple \E`qui*mul"ti*ple\, a. [Equi- + multiple: cf. F.
   ['e]quimultiple.]
   Multiplied by the same number or quantity.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Equimultiple \E`qui*mul"ti*ple\, n. (Math.)
   One of the products arising from the multiplication of two or
   more quantities by the same number or quantity. Thus, seven
   times 2, or 14, and seven times 4, or 28, are equimultiples
   of 2 and 4.
   [1913 Webster]