def gcd(a, b):
    if b == 0:
        return a
    return gcd(b, a % b)
N, H = map(int, input().split())
A = list(map(int, input().split()))
if 0 in A:
    print("YES")
    exit()
for i in range(N):
    H //= gcd(H, abs(A[i]))
if H == 1:
    print("YES")
else:
    print("NO")