N = int(input())
A = list(map(int, input().split()))
SUM = sum(A)

def make_divisors(n):
    lower_divisors , upper_divisors = [], []
    i = 1
    while i*i <= n:
        if n % i == 0:
            lower_divisors.append(i)
            if i != n // i:
                upper_divisors.append(n//i)
        i += 1
    return lower_divisors + upper_divisors[::-1]

ansl = []

for div in make_divisors(SUM):
    now = 0
    for a in A:
        if now + a < div:
            now += a
        elif now + a == div:
            now = 0
        else:
            break
    else:
        # break しなければ
        if now == 0:
            ans = SUM//div
            print(ans)
            exit()