using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        var (n, h) = (c[0], c[1]);
        var a = NList;
        foreach (var ai in a)
        {
            if (ai == 0)
            {
                WriteLine("YES");
                return;
            }
            h = h / GCD(Math.Abs(ai), h);
        }
        WriteLine(h == 1 ? "YES" : "NO");
    }
    static int GCD(int a, int b)
    {
        if (a < b) return GCD(b, a);
        if (a % b == 0) return b;
        return GCD(b, a % b);
    }
}