from math import gcd

n,k = map(int, input().split())
alist = list(map(int, input().split()))

alist = [gcd(a, k) for a in alist]

l = 1
for a in alist:
    g = gcd(a,l)
    l = l*a//g

if l % k == 0:
    print("Yes")
else:
    print("No")