import sys

input = sys.stdin.buffer.readline

N = int(input())
A = tuple(map(int, input().split()))
MAX = 3 * 10 ** 5

table = [[] for _ in range(MAX + 1)]
for i, a in enumerate(A):
    table[a].append(i)

dp = [1] * N
appeared = [False] * (MAX + 1)
for i, a in enumerate(A):
    if appeared[a]:
        continue
    appeared[a] = True
    for b in range(a * 2, MAX + 1, a):
        for j in table[b]:
            if i < j:
                dp[j] = max(dp[j], dp[i] + 1)
print(max(dp))