n = int(input())
M = 10 ** 5 + 1
B = 320
d = [0] * M
divs = [[] for _ in range(M)]
for x in range(1, B):
    for y in range(x, M, x):
        divs[y].append(x)
a = list(map(int, input().split()))
ans = 0
for x in reversed(a):
    if x >= B:
        v = max((d[b] for b in range(x, M, x)), default = 0) + 1
        d[x] = v
    else:
        v = d[x] + 1
    ans = max(ans, v)
    for y in divs[x]:
        d[y] = max(d[y], v)
print(ans)