+A **multiplicative function** is an [Arithmetic Function](/wiki/Arithmetic_Function) where $f(mn) = f(m)f(n)$ whenever $m$ and $n$ are [coprime](/wiki/Coprime). These functions elegantly break down properties of numbers based on their prime factors, simplifying problems in [Number Theory](/wiki/Number_Theory).
+## See also
+- [Arithmetic Function](/wiki/Arithmetic_Function)
+- [Divisor Function](/wiki/Divisor_Function)
+- [Totient Function](/wiki/Totient_Function)
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