import java.util.Scanner;

public class HelloWorld {

	    public static void main(String[] args) throws Exception {

	    	Scanner sc = new Scanner(System.in);
	    	long n = sc.nextLong();
	    	long h = sc.nextLong();
	    	long ans = 1;
	    	for (int i = 0; i < n; i ++) {
	    		ans = ans * sc.nextLong() % h;
	    	}

	    	System.out.println(ans == 0? "YES" : "NO");
	    	}

	    }