View Code of Problem 91

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);	
		int a = scanner.nextInt();
		System.out.print(a+"=");
		List<Integer> list = new ArrayList<Integer>();
		for(int i=2; i<a; i++) {
			while( a % i ==0) {
				list.add(i);
				a /= i;
			}
		}
		list.add(a);
		for(int i=0; i<list.size(); i++) {
			if(i==0) {
				System.out.print(list.get(i));
			}else {
				System.out.print("*"+list.get(i));
			}
		}
	}		
}