题解 | #质数因子#

import java.util.Scanner;
public class Main{
public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);

    long numInit = scanner.nextLong();
    long num=numInit;
    long k=(long)Math.sqrt(num);

    for(int i=2;i<k+1;i=i+1){
        while(num%i==0){
            System.out.print(i+" ");
            num=num/i;

        }
    }
    if(num!=1){
        System.out.print(num+" ");
    }
}
}