n, h = map(int, input().split())
A = list(map(int, input().split()))

ans = "NO"
trg = False

for i in range(n):
    Ai = A[i]
    if Ai == 0:
        break
    if h % Ai == 0:
        h //= Ai
    if Ai % h == 0:
        trg = True
    if i == n - 1 and trg:
        ans = "YES"

print(ans)