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 in = new Scanner(System.in);
        int s = in.nextInt();
        int x = s;
        int y = 2;
        StringBuilder sb = new StringBuilder("");
        while(x>=y){
            if(x%y==0){
                x=x/y;
                sb.append(y+" ");
            }else{
                if(y>x/y){
                    y=x;
                }else{
                    y++;
                }
            }
        }
        System.out.println(sb.toString());
        in.close();
    }
}