题解 | #质数因子#

import java.util.*;

// 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);
        // 注意 hasNext 和 hasNextLine 的区别
        int s=in.nextInt();
        int factor=2;
        int di=s;
        List<Integer> list=new ArrayList<>();
        while(s!=1){
        
            while(s%factor!=0&&factor<=s&&factor<Math.sqrt(di)){
                factor++;
            }
            if(factor>Math.sqrt(di)){
                list.add(s);
                break;
            }else{
            s=s/factor;
            list.add(factor);
            }
           
        }
        list.sort((a,b)->a-b);
        list.stream().forEach(x->System.out.print(x+" "));
    }
}