#include using namespace std; /*{{{*/ //template #define rep(i,n) for(int i=0;i<(int)(n);i++) #define rrep(i,n) for(int i=(n)-1;i>=0;i--) constexpr int INF = numeric_limits::max()/2; constexpr long long LINF = numeric_limits::max()/3; #define pb push_back #define eb emplace_back #define fi first #define se second #define all(v) (v).begin(),(v).end() #define sz(x) (int)(x).size() #define debug(x) cerr<<#x<<":"< ostream& operator<<(ostream& os,const vector& vec){ os << "["; for(const auto& v : vec){ os << v << ","; } os << "]"; return os; } template ostream& operator<<(ostream& os, const map& mp){ os << "{"; for(auto& p : mp){ os << p << ","; } os << "}"; return os; } template ostream& operator<<(ostream& os,const pair& p){ os << "(" << p.first << ","<< p.second <<")"; return os; } template ostream& operator<<(ostream& os,const set& st){ os<<"{"; for(T v:st) os< inline void chmax(T &x,U y){ if(y>x) x = y; } template inline void chmin(T &x,U y){ if(y; using vi = std::vector; typedef vector vvi; ll gcd(ll a,ll b){ if(b==0) return a; else return gcd(b,a%b); } constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n - 1); } //constexpr double eps = 1e-14; constexpr double eps = 1e-10; constexpr ll mod = 1e9+7; const int dx[]={1,0,-1,0} ,dy[] = {0,1,0,-1}; /*}}}*/ int main(){ int n;cin >> n; vector a(n); rep(i,n) cin >> a[i]; int max_a = *max_element(all(a)); map mp; rep(i,n) mp[a[i]] = i; vector> divs(n); rep(i,n){ for(int j=2;j*a[i]<=max_a;j++){ int k = j*a[i]; if(mp.count(k)){ divs[mp[k]].emplace_back(i); } } } vector dp(n+1,0); dp[0] = 1; rep(i,n){ for(auto j : divs[i]){ dp[i] = max(dp[i],dp[j]+1); } } int ans = 0; rep(i,n) ans = max(ans,dp[i]); cout << ans << endl; }