#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using P = pair<ll,ll>;
#define fix(x) fixed << setprecision(x)
#define asc(x) x, vector<x>, greater<x>
#define rep(i, n) for(ll i = 0; i < n; i++)
#define all(x) (x).begin(),(x).end()
template<class T>bool chmin(T&a, const T&b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool chmax(T&a, const T&b){if(a<b){a=b;return 1;}return 0;}
constexpr ll INFLL = (1LL << 62), MOD = 998244353;
constexpr int INF = (1 << 30);

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int n;
    cin >> n;
    vector<vector<int>> v(100100), div(100100);
    for(int i=1;i<=100000;i++){
        for(int j=i;j<=100000;j+=i) div[j].push_back(i);
    }
    vector<int> a(n);
    rep(i,n){
        cin >> a[i];
        v[a[i]].push_back(i);
    }
    vector<int> dp(n,1);
    for(int i=n-1;i>=0;i--){
        v[a[i]].pop_back();
        for(int x:div[a[i]]){
            if(v[x].size()){
                chmax(dp[v[x].back()], dp[i]+1);
            }
        }
    }
    cout << *max_element(all(dp)) << '\n';
    return 0;
}