#include <bits/stdc++.h>
using namespace std;
#define _for(i, a, b) for(int i = a, IM = b; i <= IM; i ++)
#define _rep(i, a, b) for(int i = a, IM = b; i >= IM; i --)
#define IOS ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
#define PCS(a) cout<<fixed<<setprecision(a);
#define _mp(a, b) make_pair(a, b)
#define fio(c) "  "<<c<<c<<c<<"  "
#define endl '\n'
using ll = long long;
using pii = pair<int, int>;
using ull = unsigned long long;
using int3 = array<int, 3>;
const double eps = 1e-10;
const ll INF = 1.1e18;
const int mod = 1e4 + 7.5, inf = 1.01e9;
const int N = 5e5 + 9, M = 1e4 + 9, Q = 1e6 + 9;

vector<int> ve[N];
int a[N];
int f[N];

void solved() {
	
	int n;	cin >> n;
	_for(i, 1, n) cin >> a[i];
	
	int m = 1e5 + 0.5;
	_for(i, 1, m) for(int j = i; j <= m; j += i) ve[j].push_back(i);
	_for(i, 1, m) ve[i].pop_back();
	
	_for(i, 1, n) {
		int x = a[i];
		int pre = f[x];
		for(int y: ve[x]) f[x] = max(f[x], f[y] + 1);
		f[x] = max(f[x], pre + 1);
		// _for(i, 1, 5) cout << f[i] << ' ';	cout << endl;
	}
	
	int ans = 0;
	_for(i, 1, m) ans = max(ans, f[i]);
	cout << ans;
	
	return ;
}
signed main() {
	IOS	PCS(6)
	// int ttx;  cin >> ttx;  _for(i, 1, ttx) 
		solved();
	return 0;
}
/*
	
	
	
*/