def make_divisors(n):
    """自然数nの約数を列挙したリストを出力する
    計算量: O(sqrt(N))
    入出力例: 12 -> [1, 2, 3, 4, 6, 12]
    """
    divisors = []
    for k in range(1, int(n**0.5) + 1):
        if n % k == 0:
            divisors.append(k)
            if k != n // k:
                divisors.append(n // k)
    divisors = sorted(divisors)
    return divisors


n = int(input())
a = list(map(int, input().split()))


sum_a = sum(a)
div = make_divisors(sum_a)

for num in div:
    sum_ = 0
    tmp_ans = 0
    for i in range(n):
        sum_ += a[i]
        if sum_ > num:
            break
        if sum_ == num:
            tmp_ans += 1
            sum_ = 0
    else:
        print(tmp_ans)
        exit()