def Map():
  return list(map(int,input().split()))

def gcd(a, b):
  while a != 0:
    b %= a
    if b == 0: return a
    a %= b
  return b

N,K = Map()
A = Map()
for i in range(N):
  A[i] = gcd(A[i],K)

g = A[0]
l = A[0]
for i in range(2,N):
  g = gcd(g,A[i])
  l *= A[i]
  l //= g
if l == K:
  print('Yes')
else:
  print('No')