基础练习 分解质因数

import java.util.Scanner;
public class Main {
    static String fun(int n){
        
        for(int i=2;i<n;i++){
            
            if(n%i==0){
                return i+"*"+fun(n/i);
            }
        }
        return ""+n;
    }

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner sc=new Scanner(System.in);
        int a=sc.nextInt();
        int b= sc.nextInt();
        for(int i=a;i<=b;i++){
            System.out.print(i+"=");
            System.out.print(fun(i));
            System.out.println();
        }

    }

}