src/NumberSystem.php
public function buildNumber(array $digits)
    {
        $newNumberString = implode($this->delimiter, $digits);

        return new Number($newNumberString, $this);
    }
public function buildNumber(array $digits)
    {
        $newNumberString = implode($this->delimiter, $digits);

        return new Number($newNumberString, $this);
    }
Build a number based on given digits.

@param array $digits

@return Number