#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000001
#define Inf64 1000000000000000001

int main(){
	
	int n;
	cin>>n;
	
	vector<vector<int>> a(100001);
	for(int i=1;i<=100000;i++){
		for(int j=i;j<=100000;j+=i)a[j].push_back(i);
	}
	vector<int> x(n);
	rep(i,n)cin>>x[i];
	
	vector<int> dp(100001,0);
	rep(i,n){
		int s = 0;
		rep(j,a[x[i]].size()){
			s = max(s,dp[a[x[i]][j]]);
		}
		dp[x[i]] = max(dp[x[i]],s+1);
	}
	
	int ans = 0;
	rep(i,dp.size())ans = max(ans,dp[i]);
	cout<<ans<<endl;
	
	return 0;
}