import math
from collections import Counter
def prime_numbers(x):
    if x < 2:
        return []
    prime_numbers = [i for i in range(x)]
    prime_numbers[1] = 0
    for prime_number in prime_numbers:
        if prime_number > math.sqrt(x):
            break
        if prime_number == 0:
            continue
        for composite_number in range(2 * prime_number, x, prime_number):
            prime_numbers[composite_number] = 0
    return [prime_number for prime_number in prime_numbers if prime_number != 0]
primes = prime_numbers((10 ** 4) * 4)
def soinnsuu(x):
    l = []
    for i in primes:
        if i > int(math.sqrt(x)) + 1:
            break
        elif x % i == 0:
            while x % i == 0:
                x //= i
                l.append(i)
    if not x == 1:
        l.append(x)
    return Counter(l)
n, h = map(int, input().split())
h = dict(soinnsuu(h))
a = list(map(int, input().split()))
if 0 in a:
    exit(print("YES"))
for i in a:
    for j, k in dict(soinnsuu(abs(i))).items():
        try:
            h[j] = max(0, h[j] - k)
        except:
            pass
if all(i == 0 for i in h.values()):
    print("YES")
else:
    print("NO")