N,H = map(int,input().split())
A = list(map(int,input().split()))
f1 = 0
f2 = 0
for i in range(N):
    if A[i]%H == 0:
        f1 += 1
    if A[i] == 0:
        f2 += 1
        break
if f1 >= 1 and f2 == 0:
    print("YES")
elif f1 == 0 and f2 == 0:
    print("NO")
else:
    print("NO")