import math

n, k = map(int, input().split())
a = list(map(int, input().split()))

if k in a:
    print("Yes")
    exit()

a_sorted = sorted(a)
d = 0
for i in range(1, n):
    diff = a_sorted[i] - a_sorted[i-1]
    d = math.gcd(d, diff)

if d == 0:
    print("Yes" if k == 0 else "No")
else:
    print("Yes" if k % d == 0 else "No")