import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
yes = lambda :print("yes");Yes = lambda :print("Yes");YES = lambda : print("YES")
no = lambda :print("no");No = lambda :print("No");NO = lambda : print("NO")
#######################################################################
n = ni()
a = na()
m = 10**5+1
b = [[] for i in range(m)]

for i in range(1, m):
    for j in range(i*2, m, i):
        b[j].append(i)


dp = [0] * m
for i in range(n):
    x = dp[a[i]]
    for j in b[a[i]]:
        dp[a[i]] = max(dp[a[i]], dp[j] + 1)
    dp[a[i]] = max(dp[a[i]], x + 1)
    #print(dp)
print(max(dp))