#!/usr/bin/env python3
import sys
import math

def main():
    N, H = map(int, input().split())
    A = list(map(int, input().split()))
    # m = 1
    # for i in A:
    #     m *= i % H
    #     m %= H
    #     if m == 0:
    #         print("YES")
    #         return
    # print("NO")
    # return
    hh = H
    for i in A:
        g = math.gcd(i, hh)
        hh //= g
        if hh == 1:
            print("YES")
            return
    print("NO")
    return

if __name__ == '__main__':
    main()