#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using namespace std;
using ll=long long;
using ld=double;
ld pie=3.14159265359;
ll mod=998244353;
ll inf=10000000000000000;
int main(){
    ll n;
    cin >> n;
    vector<ll>a(n);
    for (ll i = 0; i < n; i++)
    {
        cin >> a[i];
    }
    map<ll,ll>memo;
    for (ll i = 0; i < n; i++)
    {
        bool ok=false;
        ll now=1;
        vector<ll>kesu;
        for(auto v:memo){
            if (a[i]%v.first==0)
            {
                now=max(now,v.second+1);
            }
            if (v.first%a[i]==0)
            {
                if (now>=v.second)
                {
                    kesu.push_back(v.first);
                }
            }
        }
        if (!kesu.empty())
        {
            for (ll j = 0; j < kesu.size(); j++)
            {
                memo.erase(kesu[j]);
            }
            memo[a[i]]=now;
        }else{
            memo[a[i]]=now;
        }
    }
    ll ans=0;
    for(auto v:memo){
        ans=max(ans,v.second);
    }
    cout << ans << endl;
}