J=lambda:map(int,input().split())
N,K=J()
A=list(J())
def g(a,b):
	while b:a,b=b,a%b
	return a
for i in range(N):A[i]=g(A[i],K)
l=1
for a in A:l=l*a//g(l,a)
print("YNeos"[l<K::2])