팩토리얼

public class Main {
    public static void main(String[] args) {

        int num = 5;
        int result = 1;
        
        //팩토리얼
        // ex) 5 * 4 * 3 * 2 * 1
        for (int i=num; i > 0; i--){

            result *= i;
        }
        System.out.println("팩토리얼 함수 입니다" + result);
       
    }
}