from math import gcd

def lcm(x, y):
    return (x * y) // gcd(x, y)

N,X = map(int,input().split())
C = list(map(int,input().split()))
lc = C[0]
for i in range(1,N):
    lc = lcm(lc,C[i])
M = lc/X
if M.is_integer():
    print("Yes")
else:
    print("No")