Definition:Common Divisor/Integral Domain

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Let $\struct {D, +, \times}$ be an integral domain.

Let $S \subseteq D$ be a finite subset of $D$.

Let $c \in D$ such that $c$ divides all the elements of $S$, that is:

$\forall x \in S: c \divides x$

Then $c$ is a common divisor (or common factor) of all the elements in $S$.