import sys
import pypyjit
import itertools
import heapq
import math
from collections import deque, defaultdict
import bisect

input = sys.stdin.readline
sys.setrecursionlimit(10 ** 6)
pypyjit.set_param('max_unroll_recursion=-1')


def index_lt(a, x):
    'return largest index s.t. A[i] < x or -1 if it does not exist'
    return bisect.bisect_left(a, x) - 1


def index_le(a, x):
    'return largest index s.t. A[i] <= x or -1 if it does not exist'
    return bisect.bisect_right(a, x) - 1


def index_gt(a, x):
    'return smallest index s.t. A[i] > x or len(a) if it does not exist'
    return bisect.bisect_right(a, x)


def index_ge(a, x):
    'return smallest index s.t. A[i] >= x or len(a) if it does not exist'
    return bisect.bisect_left(a, x)


N = int(input())
A = list(map(int, input().split()))
S = sum(A)

factors = []
for i in range(1, S + 1):
    if i * i > S:
        break
    if i * i == S:
        factors.append(i)
    elif S % i == 0:
        factors.append(i)
        factors.append(S // i)
factors.sort()

for f in factors:
    ans = 0
    acc = 0
    flag = True
    for a in A:
        acc += a
        if acc > f:
            flag = False
            break
        if acc == f:
            ans += 1
            acc = 0
    if flag is True:
        print(ans)
        break