"""

AC解

"""

import math

N,K = map(int,input().split())
A = list(map(int,input().split()))

assert 1 <= N <= 2*(10**5)
assert 1 <= K <= 10**18
assert len(A) == N
for a in A:
    assert 1 <= a <= 10**18

X = 1

for a in A:

    g = math.gcd(a,K)
    X = g * X // math.gcd(g,X)

if X == K:
    print ("Yes")
else:
    print ("No")