import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
yes = lambda :print("yes");Yes = lambda :print("Yes");YES = lambda : print("YES")
no = lambda :print("no");No = lambda :print("No");NO = lambda : print("NO")
#######################################################################
n,k = na()
a = na()
from math import gcd
def lcm(x, y):
    return (x * y) // gcd(x, y)
z = 1
for i in range(n):
    g = gcd(a[i],k)
    z = lcm(z, g)

if z == k:
    print("Yes")
else:
    print("No")