#include<cstdio>
#include<queue>
#include<utility>
#include<cstring>
#include<stack>
#include<algorithm>
#include<cmath>
#include<iostream>
#include<map>
#include<set>
#define MAX_N 100001
#define INF_INT 2147483647
#define INF_LL 9223372036854775807
#define REP(i,n) for(int i=0;i<(int)(n);i++)
using namespace std;
typedef long long int ll;
typedef pair<ll,ll> P;
void init(int n);
int find(int n);
void unite(int x,int y);
bool same(int x, int y);
ll bpow(ll,ll,ll);
typedef vector<int> vec;
typedef vector<vec> mat;
mat mul(mat &A,mat &B);
mat pow(mat A,ll n);
int dx[4] = {1,0,0,-1};
int dy[4] = {0,1,-1,0};


bool cmp_P(const P &a,const P &b){
  return a.second < b.second;
}
int main()
{
  int N,I,res=1,dp[1000001];
  fill(dp,dp+1000001,-INF_INT);
  cin >> N;
  vector<int> x(N,0);
  set<int> sets;
  REP(i,N){
    cin >> x[i];
    dp[x[i]] = 1;
  }
  sort(x.begin(),x.end());
  REP(i,N){
    for(int j=2;j<=1000000/x[i];j++){
      if(dp[x[i]*j] != -INF_INT)
        dp[x[i]*j] = max(dp[x[i]] + 1,dp[x[i]*j]);
    }
  }
  REP(i,1000001)
    res = max(res,dp[i]);
  cout << res << endl;
  return 0;
}