def gcd(a,b):
    if b==0:return a
    return gcd(b,a%b)
N,K = map(int,input().split())
A = list(input().split())
a = int(A[0])
for i in range(1,N):
    b = int(A[i])
    d = gcd(a,b)
    a = a//d*b
if a%K==0:
    print("Yes")
else:
    print("No")