import math
N,K=map(int,input().split())
A=list(map(int,input().split()))
B=[]
for a in A:
    if K%a==0:B.append(a)
if len(B)==0:
    print("No");exit()
lcm=math.lcm(*B)
if lcm<K:
    print("No");exit()
print("Yes")