import kotlin.system.exitProcess

val br = System.`in`.bufferedReader()

fun readLine(): String? = br.readLine()
fun readString() = readLine()!!
fun readInt() = readString().toInt()
fun readStrings() = readLine()?.split(" ")?.filter { it.isNotEmpty() } ?: listOf()
fun readInts() = readStrings().map { it.toInt() }.toIntArray()

const val MAX_STACK_SIZE: Long = 128 * 1024 * 1024

fun main() {
    val thread = Thread(null, ::run, "solve", MAX_STACK_SIZE)
    thread.setUncaughtExceptionHandler { _, e -> e.printStackTrace(); exitProcess(1) }
    thread.start()
}

fun run() {
    val N = readInt()
    val a = readInts()
    output(solve(N, a))
}

fun solve(N: Int, a: IntArray): Int {
    val preSum = a.scan(0, Int::plus)

    fun canDivide(target: Int): Boolean {
        var i = 0
        for (j in 1..N) {
            val sum = preSum[j] - preSum[i]
            if (sum == target) i = j
            else if (sum > target) return false
        }
        return true
    }

    var res = 1
    var i = 2
    while (i * i <= preSum.last()) {
        val sum = preSum.last() / i
        if (canDivide(sum)) res = i
        i++
    }
    return res
}

fun output(res: Int) = println(res)