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

m = 10 ** 5
dp = [0 for _ in range(n)]
idx = [None for _ in range(m + 1)]
for i in range(n):
  if idx[a[i]] is None:
    dp[i] = 1
  else:
    dp[i] = dp[idx[a[i]]] + 1
  for x in range(a[i], m + 1, a[i]):
    if idx[x] is None or dp[idx[x]] < dp[i]:
      idx[x] = i

print(max(dp))