题解 | #质数因子#

import java.util.; import java.lang.; import java.math.*; public class Main {

public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);

    int number = sc.nextInt();

    int min = 2;
    while (true) {
        if (number % min == 0) {
            System.out.print(min+" ");
            if (min == number) {
                break;
            }
            number = number / min;
            min = 2;

        } else {
            min++;
            if(min>Math.sqrt(number)){  //临界判断大于开方数，那就直接改成他本身
                min=number;
            }
        }
    }
}

}