import sys; input = sys.stdin.buffer.readline
sys.setrecursionlimit(10**7)
from collections import defaultdict
con = 10 ** 9 + 7; INF = float("inf")

def getlist():
	return list(map(int, input().split()))

def divisor(N):
	divisor_list = []
	n = int((N ** 0.5) // 1)
	for i in range(1, n):
		if N % i == 0:
			divisor_list.append(i)
			divisor_list.append(int(N // i))

	if n ** 2 == N:
		divisor_list.append(n)
	else:
		if N % n == 0:
			divisor_list.append(n)
			divisor_list.append(int(N // n))

	return sorted(divisor_list)

#処理内容
def main():
	N = int(input())
	A = getlist()
	S = sum(A)
	div = divisor(S)
	div = div[::-1]
	ans = 1
	for i in div:
		val = 0
		jud = 1
		for j in range(N):
			val += A[j]
			if val == i:
				val = 0
			elif val > i:
				jud = 0
				break
		if jud == 1:
			ans = int(S // i)

	print(ans)

if __name__ == '__main__':
	main()