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

sm = 0
d = []
for e in a:
    sm += e

for i in range(1, sm + 1):
    if(i * i > sm):
        break
    if sm % i == 0:
        d.append(i)
        if i != sm // i:
            d.append(sm//i)

d.sort(reverse = True)

for e in d:
    flag = True
    g = sm//e
    b = a.copy()
    for i in range(len(b)):
        if b[i] > g:
            flag = False
            break
        if b[i] < g and i != len(b) - 1:
            b[i + 1] += b[i]
    if flag :
        print(e)
        exit()