#include <iostream>
#include <vector>
#include <algorithm>
#include <atcoder/all>

#define ALL(V) std::begin(V), std::end(V)

const int SIZE = 1e5 + 10;

template <typename T>
void chmax(T &a, const T &b) { a = std::max(a, b); }

int main() {
    std::vector<std::vector<int>> divs(SIZE);
    for (int i = 1; i < SIZE; i++) {
        for (int j = 1; i * j < SIZE; j++) {
            divs[i * j].push_back(i);
        }
    }
    int N;
    std::cin >> N;
    std::vector<int> A(N);
    for (auto &e : A) std::cin >> e;
    std::vector<int> dp(SIZE);
    for (auto e : A) {
        int v = 0;
        for (auto d : divs[e]) chmax(v, dp[d] + 1);
        chmax(dp[e], v);
    }
    std::cout << *std::max_element(ALL(dp)) << std::endl;
    return 0;
}