(a) Write a function isPrime (n) that takes an integer n and returns true if the number is prime or false if it is not. Your function must not use the isPrime built in function, but you can use whatever other MATLAB functions you want. A number, n, is not prime if any number between 2 and n/2 divides the number without any remainder. (b) For the isPrime function above, give three test cases that will test a range of outcomes. For each test case explain what types of inputs that case is testing and give the expected output.