from math import gcd, lcm

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

x = 1
#for a in [gcd(K, a) for a in A]:
#    x = lcm(x, a)

for a in A:
    x = lcm(x, a)

if x % K == 0:
    print('Yes')
else:
    print('No')