#include<bits/stdc++.h>
#define int long long
using namespace std;
int n,a[1234567],dp[1234567],ans;
signed main(){
//	freopen("sequence.in","r",stdin);
//	freopen("sequence.out","w",stdout);
	cin>>n;
	for(int i=1;i<=n;i++)scanf("%lld",&a[i]);
	sort(a+1,a+n+1);
	for(int i=1;i<=n;i++){
		dp[a[i]]=max(dp[a[i]],1ll);
		for(int j=2*a[i];j<=1000000;j+=a[i])dp[j]=max(dp[j],dp[a[i]]+1);
	}
	for(int i=1;i<=n;i++)ans=max(ans,dp[a[i]]);
	cout<<ans<<endl;
	return 0;
}