N = int(input())
a_list = list(map(int, input().split()))
a_sum = sum(a_list)
a_max = max(a_list)
div_list = []
for i in range(1, int(a_sum**0.5) + 1):
    if a_sum % i == 0:
        if i >= a_max:
            div_list.append(i)
        if i != a_sum // i:
            if (a_sum // i) >= a_max:
                div_list.append(a_sum // i)

div_list.sort()

for div in div_list:
    end = True
    count = 0
    for a in a_list:
        count += a
        if count > div:
            end = False
            break
        elif count == div:
            count = 0
    if end:
        print(a_sum // div)
        break