public class t111 {
    /**
     *
     * 将一个正整数分解质因数。
     */
    public static void main(String args[]) {
        Scanner input = new Scanner(System.in);

        System.out.println("请输入一个整数按回车确认");

        int num = input.nextInt();

        System.out.print(num + "=");
        if (num == 1) {
            System.out.println(1);
        }
           
        for (int i = 2; i < num + 1; i++) {
            if (num % i == 0) {
                System.out.print(i);
                num = num / i;
                i--;
                if (num != 1) {
                    System.out.print("*");
                }
            }
        }
    }

}