n,h=map(int,input().split())
a=list(map(int,input().split()))
# 素因数分解
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])
  if arr==[]:
    arr.append([n, 1])
  return arr
#factorization(24) 
## [[2, 3], [3, 1]] 
##  24 = 2^3 * 3^1
ary=factorization(h)
d={x[0]:x[1] for x in ary}
keys=d.keys()
for x in a:
  for k in keys:
    while d[k]>0 and x%k==0:
      x//=k
      d[k]-=1
if all([d[k]==0 for k in keys]):
  print('YES')
else:
  print('NO')