Study the following code. It should meet the following specification, but it does not. Your task is to rewrite the code so that it is correct.

The function is_prime determines whether its input is a prime number. Recall that a prime number is defined as those integers (greater than 1) that are divisible by only themselves and 1 (of course 1 divides every integer). So 7 is prime because the only numbers that divide 7 are 7 itself and 1. But 9 is not prime because 9 is divisible by 3.

Here is a program that has the is_prime function and a main function. There are several errors in both functions. Rewrite the code so it is correct.