#include <bits/stdc++.h>
using namespace std;

int main() {
  int n;
  cin >> n;
  vector<int> a(n);
  for (int i = 0; i < n; i++) cin >> a[i];

  int mx = *max_element(a.begin(), a.end());

  vector<vector<int>> ids(mx + 1);
  for (int i = 0; i < n; i++) {
    ids[a[i]].push_back(i);
  }

  vector<int> dp(n, 1), used(mx + 1);
  int ans = 0;
  for (int i = 0; i < n; i++) {
    for (int j = a[i] * 2; j <= mx; j += a[i]) {
      if (used[a[i]]) break;
      for (int to : ids[j]) {
        dp[to] = max(dp[to], dp[i] + 1);
      }
    }
    ans = max(ans, dp[i]);
    used[a[i]] = 1;
  }
  cout << ans << endl;

  return 0;
}