#include <cassert>
#include <cmath>
#include <algorithm>
#include <iostream>
#include <iomanip>
#include <climits>
#include <map>
#include <queue>
#include <set>
#include <cstring>
#include <vector>

using namespace std;
typedef long long ll;

vector<int> V[100010];

int main() {
  int N;
  cin >> N;

  bool checked[100010];
  memset(checked, false, sizeof(checked));

  vector<int> A(N);
  for (int i = 0; i < N; ++i) {
    cin >> A[i];

    int a = A[i];
    while (a < 100010) {
      V[a].push_back(A[i]);
      a += A[i];
    }
  }

  int dp[100010];
  memset(dp, 0, sizeof(dp));
  int ans = 0;

  for (int a : A) {
    int temp[100010];
    memcpy(temp, dp, sizeof(dp));

    for (int v : V[a]) {
      temp[a] = max(temp[a], dp[v] + 1);
      ans = max(ans, temp[a]);
    }

    memcpy(dp, temp, sizeof(temp));
  }

  cout << ans << endl;

  return 0;
}