#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef vector< int > vi;
typedef vector< vi > vvi;
typedef vector< vvi > vvvi;
typedef vector< vvvi > vvvvi;
typedef vector< vvvvi > vvvvvi;
typedef vector< ll > vl;
typedef vector< vl > vvl;
typedef vector< vvl > vvvl;
typedef vector< vvvl > vvvvl;
typedef vector< vvvvl > vvvvvl;
typedef pair< int, int > pii;
typedef vector< pii > vp;
typedef vector< vp > vvp;
typedef vector < string > vs;
typedef vector< vs > vvs;
typedef vector< double > vd;
typedef vector< vd > vvd;
typedef vector< vvd > vvvd;
typedef vector< bool > vb;
typedef vector< vb > vvb;

const int INF = 0x3f3f3f3f;
const int MOD7 = ( int ) 1e9 + 7;

template< class T1, class T2 >
int upmin( T1 &x, T2 v ){
    if( x > v ){
        x = v;
        return 1;
    }
    return 0;
}

template< class T1, class T2 >
int upmax( T1 &x, T2 v ){
    if( x < v ){
        x = v;
        return 1;
    }
    return 0;
}

int N;
vi A;

void init(){
    cin >> N;
    A = vi( N );
    for( int i = 0; i < N; ++i )
        cin >> A[ i ];
}

int maxa;
vi dp;

void preprocess(){
    sort( A.begin(), A.end() );
    maxa = *max_element( A.begin(), A.end() );
    dp = vi( maxa + 1, 1 );
    for( int i = 0; i < N; ++i )
        for( int j = A[ i ] + A[ i ]; j <= maxa; j += A[ i ] )
            upmax( dp[ j ], dp[ A[ i ] ] + 1 );
}

void solve(){
    int ans = 0;
    for( int i = 0; i < N; ++i )
        upmax( ans, dp[ A[ i ] ] );
    cout << ans << endl;
}

signed main(){
    ios::sync_with_stdio( 0 );
    init();
    preprocess();
    solve();
    return 0;
}