# Factor - `v::factor(int $dividend)` Validates if the input is a factor of the defined dividend. ```php v::factor(0)->validate(5); // true v::factor(4)->validate(2); // true v::factor(4)->validate(3); // false ``` *** See also: * [Digit](Digit.md) * [Finite](Finite.md) * [Infinite](Infinite.md) * [Numeric](Numeric.md) * [PerfectSquare](PerfectSquare.md) * [PrimeNumber](PrimeNumber.md)