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);
        long s = sc.nextLong();
        long i = 2;
        while (s != 1) {
            if (s % i == 0) {
                s = s / i;
                System.out.print(i + " ");
            } else {
                if (i > s / i)
                    i = s;
                else
                    i++;
            }
        }
    }
}