n, h = map(int, input().split())
if h == 1:
    print('YES')
    exit()
d = {}
p = 2
while p * p <= h:
    cnt = 0
    while h % p == 0:
        cnt += 1
        h //= p
    if cnt:
        d[p] = cnt
    p += 1
if h > 1:
    d[h] = 1
for a in map(int, input().split()):
    if a == 0:
        print('YES')
        exit()
    for p in d:
        while a % p == 0:
            d[p] -= 1
            a //= p
print('YES' if all(v <= 0 for v in  d.values()) else 'NO')