import sys
input = lambda : sys.stdin.readline().rstrip()
sys.setrecursionlimit(max(1000, 10**9))
write = lambda x: sys.stdout.write(x+"\n")


n,h = list(map(int, input().split()))
a = list(map(int, input().split()))
def hurui(n):
    pl = []
    mpf = [None]*(n+1)
    for d in range(2,n):
        if mpf[d] is None:
            mpf[d] = d
            pl.append(d)
        for p in pl:
            if p*d>n or p>mpf[d]:
                break
            mpf[p*d] = p
    return pl, mpf
from collections import defaultdict
if 0 in a:
    ans = "YES"
else:
    def factor(num):
        d = defaultdict(int)
        while num>1:
            d[mpf[num]] += 1
            num //= mpf[num]
        return d
    pl, mpf = hurui(max(a)+10)
    d = defaultdict(int)
    for num in a:
        dd = factor(abs(num))
        for k,v in dd.items():
            d[k] += v
    d2 = factor(h)
    if all(d2[k]<=d[k] for k in d2.keys()):
        ans = "YES"
    else:
        ans = "NO"
print(ans)