import numpy as np

def div(n):
    rlst = []
    for i in range(1, int(n ** 0.5) + 1):
        if n % i == 0:
            rlst.append(i)
            if i != n // i:
                rlst.append(n // i)
    rlst.sort()
    return rlst

N = int(input())
a = list(map(int, input().split()))
totala = np.sum(a)
divlst = div(totala)

for i in divlst:
    tmp = 0
    for j in a:
        tmp += j
        if tmp > i:
            break
        elif tmp == i:
            tmp = 0
    else:
        break

print(totala // i)