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()

g = 1
for a in A:
  gg = gcd(g,a)
  a //= gg
  gg = gcd(a,K)
  g *= gg
if g == K:
  print('Yes')
else:
  print('No')