大整数的因子

解题思路:

注意事项:

参考代码:

import java.util.Scanner;

import java.math.BigInteger;

public class Main {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

BigInteger c = new BigInteger(sc.next());

boolean a = false;

for(int i = 2; i <= 9; i++) {

if(c.remainder(BigInteger.valueOf(i)).equals(BigInteger.ZERO)) {

System.out.print(i + " ");

a = true;

}

}

if(!a) System.out.println("none");

}

}