#include<bits/stdc++.h>
using namespace std;
#ifdef LOCAL_DEBUG
  #include "LOCAL_DEBUG.hpp"
#endif
#define int long long

signed main(){

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

  vector<int> dp(3e5+1, 0);
  for(int i = 0; i < n; i++){
    for(int j = a[i]*2; j <= 3e5; j+=a[i]){
      dp[j] = max(dp[j], dp[a[i]] + 1);
    }
  }
  cout << *max_element(dp.begin(),dp.end()) << endl;

  return 0;
}