import sys
from math import gcd

N,H=map(int,input().split())
A=list(map(int,input().split()))

if 0 in A:
    print("YES")
    sys.exit()
    
for a in A:
    G=gcd(a,H)
    H//=G

if H==1:
    print("YES")
else:
    print("NO")