from math import gcd

n, k = map(int, input().split())
A = list(map(int, input().split()))
assert 1 <= n <= 200000
assert 1 <= k <= 10**18
assert len(A) == n
assert all(1 <= a <= 10**18 for a in A)

lc = 1
for a in A:
    a = gcd(a, k)
    lc = lc * a // gcd(lc, a)

if lc == k:
    print("Yes")
else:
    print("No")