Definition:Equimultiples
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Definition
Let $a$ and $b$ be numbers.
Then equimultiples of $a$ and $b$ are numbers of the form $c a$ and $c b$ where $c$ is also a number.
That is, they are products arising from the multiplications of two numbers by the same common number.
Historical Note
The term is found in historical literature, in particular Book V of Euclid's The Elements in the context of the theory of proportion.