part4

package com.epam.rd.java.basic.practice1;

public class Part4 {

    public static int gcd(int firstNumber, int secondNumber) {
        while (firstNumber != secondNumber) {
            if(firstNumber > secondNumber) {
                firstNumber -= secondNumber;
            } else {
                secondNumber -= firstNumber;
            }
        }
        return secondNumber;
    }

    public static void main(String[] args) {
        System.out.println(gcd(55, 121));
    }

}