#include <bits/stdc++.h>
using namespace std;
int main() {
    int N;
    cin >> N;
    int A[100010];
    for (int i = 0; i < N; i ++) {
        cin >> A[i];
    }
    int lst[100010];
    for (auto& a : lst) {
        a = -1;
    }
    int dp[100010];
    dp[0] = 1;
    lst[A[0]] = 0;
    for (int i = 1; i < N; i ++) {
        dp[i] = 0;
        for (int a = 1; a * a <= A[i]; a ++) {
            if (A[i] % a == 0) {
                if (lst[a] >= 0) {
                    dp[i] = max(dp[i], dp[lst[a]]);
                }
                if (lst[A[i] / a] >= 0) {
                    dp[i] = max(dp[i], dp[lst[A[i] / a]]);
                }
            }
        }
        dp[i] += 1;
        lst[A[i]] = i;
    }
    int ans = 0;
    for (int i = 0; i < N; i ++) {
        ans = max(ans, dp[i]);
    }
    cout << ans << endl;
}