题解 | #质数因子#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int num = sc.nextInt();
        while (num != 1) {
            for (int i = 2; i <= num; i++) {
                if (num % i == 0) {
                    num /= i;
                    System.out.print(i + " ");
                    break;
                }
            }
        }
    }
}