#include <iostream>
#include <cstdio>
#include <string>
#include <vector>
#include <cmath>
#include <algorithm>

using namespace std;

#define REP(i,n)	for(int i=0;i<(n);++i)
#define REPS(i,s,t)	for(int i=(s);i<(t);++i)
#define PER(i,n)	for(int i=0;i>(n);--i)
#define PERS(i,s,t)	for(int i=(s);i>(t);--i)

#define INF 		2000000007
#define MINF		-200000007
#define MOD			17 	
// 2^20

#define MAX 		1000005

typedef unsigned int 			uint;
typedef unsigned long long int	ull;
typedef long long int 			ll;

int dp[MAX];

int main(){
	int N;cin>>N;
	vector<int> X(N);
	REP(i,N)cin>>X[i];
	fill(dp,dp+MAX,MINF);

	sort(X.begin(),X.end());

	REP(i,N){
		int x = X[i];
		if(dp[x]<0)dp[x]=1;
		REPS(j,1,X[N-1]){
			if((j+1)*x > X[N-1])break;
			dp[(1+j)*x] = max(dp[(1+j)*x],dp[x]+1);
		}
	}
	int maxl=0;
	REP(i,N)maxl=max(maxl,dp[X[i]]);

	cout << maxl << endl;

	return 0;
}