def factorization(n):
    arr = []
    temp = n
    for i in range(2, int(-(-n**0.5 // 1)) + 1):
        if temp % i == 0:
            cnt = 0
            while temp % i == 0:
                cnt += 1
                temp //= i
            arr.append([i, cnt])
 
    if temp != 1:
        arr.append([temp, 1])

    return arr

N, H = map(int, input().split())
A = list(map(int, input().split()))
for i in range(N):
    if A[i] == 0:
        print("YES")
        exit()
    A[i] = abs(A[i])

for k, v in factorization(H):
    cnt = 0
    for i in range(N):
        while A[i] % k == 0:
            A[i] //= k
            cnt += 1
    if cnt < v:
        print("NO")
        exit()
        
print("YES")