Maximum balls

Problem Statement

Maximum balls Problem Description Bob is a math teacher with a class of N students. The marks obtained by the students are represented by the array `marks`. Bob wants to gift every student an equal number of balls. To do this, he needs to choose a number that is a factor of the marks of all N students. In order to distribute the maximum number of balls, Bob can change the marks of at most one student to any positive number of his choice. Find the maximum number of balls Bob can give to every student after changing the marks of at most one student. Complete the `max_balls` function. This function takes the following 2 parameters and returns an integer that represents the answer: * `N`: Represents the number of students in the class * `marks`: Represents the marks of N students Input format for custom testing Note: Use this Input format if you are testing against custom input or writing code in a language where we don't provide boilerplate code * The first line contains the function para