from collections import Counter


def factorize(n):
    a = 2
    fct = []
    while a * a <= n:
        while n % a == 0:
            n //= a
            fct.append(a)
        a += 1
    if n > 1:
        fct.append(n)
    return fct


n, h = map(int, input().split())
p = Counter(factorize(h))
a = list(map(int, input().split()))
keys = list(p.keys())
for x in a:
    for k in keys:
        while p[k] > 0 and x % k == 0:
            p[k] -= 1
            x //= k
for v in p.values():
    if v > 0:
        print('NO')
        break
else:
    print('YES')