#include "bits/stdc++.h"
using namespace std;
#define print(x) cout<<x<<endl;
#define rep(i,a,b) for(int i=a;i<b;i++)
#define REP(i,a) for(int i=0;i<a;i++)
#define printall(n,array) for(int i=0;i<n;i++){cout<<array[i]<<" ";}cout<<endl;
typedef long long ll;
typedef pair<int, int> PI;
typedef pair<int, PI> V;
typedef vector<int> VE;
const ll mod = 1000000007; //10^9+7


int main(){
  int n; cin>>n;
  int x[1000005];
  REP(i,n)cin>>x[i];
  int dp[1000005];
  REP(i,n)dp[i]=1;
  sort(x,x+n);
  REP(i,n){
    rep(j,i+1,n){
      if(x[j]%x[i]==0)dp[j]=max(dp[j],dp[i]+1);
    }
  }
  int max_=0;
  REP(i,n)max_=max(max_,dp[i]);
  print(max_);
}