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

    return divs

N = int(input())
a = list(map(int, input().split()))
A = sum(a)
divs = make_divisors(A)
divs.sort()

for d in divs:
    acc = 0
    
    for i in range(N):
        acc += a[i]
        
        if acc<d:
            continue
        elif acc==d:
            acc = 0
        else:
            break
    else:
        print(A//d)
        exit()