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]

N = int(input())
A = list(map(int,input().split()))
SUMA = sum(A)
D = make_divisors(SUMA)
lower = max(A)
for d in D:
    if lower<=d:
        temp = 0
        for a in A:
            temp += a
            if temp>d:
                break
            if temp==d:
                temp = 0
        else:
            print(SUMA//d)
            exit()