# coding: utf-8
import array, bisect, collections, heapq, itertools, math, random, re, string, sys, time
sys.setrecursionlimit(10 ** 7)
INF = 10 ** 20
MOD = 10 ** 9 + 7


def II(): return int(input())
def ILI(): return list(map(int, input().split()))
def IAI(LINE): return [ILI() for __ in range(LINE)]
def IDI(): return {key: value for key, value in ILI()}


def solve(N, x):
    x.sorted()
    memo_list = [1] * N
    for ind, num in enumerate(x):
        if ind == 0:
            continue

        for j in range(0, ind):
            if num % x[j] == 0:
                memo_list[ind] = max(memo_list[ind], memo_list[j] + 1)

    return max(memo_list)


def main():
    N = II()
    x = ILI()
    print(solve(N, x))


if __name__ == "__main__":
    main()