import collections
import math
def my_lcm(x, y):
    return (x * y) // math.gcd(x, y)


N,K = map(int, input().split())
A = list(map(int, input().split())) 
v = 1
for a in A:
    gc = math.gcd(a,K)
    v = my_lcm(v,gc)
if v%K==0:
    print('Yes')
else:
    print('No')