N,K=map(int, input().split())
A=list(map(int, input().split()))
B=[]
import math
for a in A:
  B.append(math.gcd(a,K))

c=1
for b in B:
  a=math.gcd(b,c)
  c=b*c//a 
if c==K:
  print('Yes')
else:
  print('No')