# https://yukicoder.me/problems/no/1250
import sys

n, h = list(map(int, input().split()))
a = list(map(int, input().split()))

ans = "NO"
q = a[0]
for i in range(1, n):
    q *= a[i]
    q %= h

if ((q % h) == 0):
    print("YES")
else:
    print("NO")