using System;

public class Hello
{
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var n = int.Parse(line[0]);
        var h = int.Parse(line[1]);
        line = Console.ReadLine().Trim().Split(' ');
        var a = Array.ConvertAll(line, int.Parse);
        getAns(n, h, a);
    }
    static void getAns(int n, int h, int[] a)
    {
        for (int i = 0; i < n; i++)
        {
            var t = gcd(h, a[i]);
            h /= t;
            if (h == 1) { Console.WriteLine("YES"); return; }
        }
        Console.WriteLine("NO");
    }
    static int gcd(int a, int b)
    {
        if (a < b) return gcd(b, a);
        while (b != 0)
        {
            var w = a % b;
            a = b;
            b = w;
        }
        return a;
    }
}