using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp84
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] str = Console.ReadLine().Split();
            int n = int.Parse(str[0]);
            int h = int.Parse(str[1]);
            int kakewa = 1;
            int[] a = new int[n];
            string[] str2 = Console.ReadLine().Split();
            for(int i = 0; i < n; i++)
            {
                a[i] = int.Parse(str2[i]);
            }
            for(int i = 0; i < n; i++)
            {
                kakewa = kakewa * a[i];
            }
            if (kakewa < 0)
            {
                kakewa *= -1;
            }
            if (kakewa % h == 0)
            {
                Console.WriteLine("YES");
                Console.ReadLine();
            }
            else
            {
                Console.WriteLine("NO");
                Console.ReadLine();
            }
        }
    }
}