import sys
from sys import stdin
from collections import defaultdict

MOD = 998244353

def main():
    max_spf = 10**6
    spf = list(range(max_spf + 1))
    for i in range(2, int(max_spf**0.5) + 1):
        if spf[i] == i:
            for j in range(i*i, max_spf+1, i):
                if spf[j] == j:
                    spf[j] = i

    def get_primes(n):
        primes = set()
        if n == 1:
            return primes
        while n != 1:
            p = spf[n]
            primes.add(p)
            while n % p == 0:
                n = n // p
        return primes

    input = sys.stdin.read().split()
    N = int(input[0])
    A = list(map(int, input[1:N+1]))

    dp = defaultdict(int)
    answer = 0

    for num in A:
        if num == 1:
            answer = (answer + 1) % MOD
            continue
        primes = get_primes(num)
        if not primes:
            answer = (answer + 1) % MOD
            continue
        sum_p = 0
        for p in primes:
            sum_p = (sum_p + dp[p]) % MOD
        current = (sum_p + 1) % MOD
        answer = (answer + current) % MOD
        for p in primes:
            dp[p] = (dp[p] + current) % MOD

    print(answer % MOD)

if __name__ == "__main__":
    main()