import java.io.*; import java.util.*; import java.util.stream.*; public class Main { static final int SIZE = 100000; public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); ArrayList> lists = new ArrayList<>(); for (int i = 0; i <= SIZE; i++) { lists.add(new ArrayList<>()); } for (int i = 1; i <= SIZE; i++) { for (int j = 1; j * i <= SIZE; j++) { lists.get(j * i).add(i); } } int[] lengths = new int[SIZE + 1]; lengths[1] = 1; int ans = 0; while (n-- > 0) { int x = sc.nextInt(); int max = 0; for (int y : lists.get(x)) { max = Math.max(max, lengths[y]); } lengths[x] = max + 1; ans = Math.max(max + 1, ans); } System.out.println(ans - 1); } } class Utilities { static String arrayToLineString(Object[] arr) { return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n")); } static String arrayToLineString(int[] arr) { return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new)); } } class Scanner { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(""); StringBuilder sb = new StringBuilder(); public Scanner() throws Exception { } public int nextInt() throws Exception { return Integer.parseInt(next()); } public long nextLong() throws Exception { return Long.parseLong(next()); } public double nextDouble() throws Exception { return Double.parseDouble(next()); } public int[] nextIntArray() throws Exception { return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray(); } public String next() throws Exception { while (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }