The user will be invited to enter a number, and then the program will determine whether it is a simple or composite number. If the number is less or equal to 1, the program will report that it is neither simple nor composite. If the number is greater than 1, the program will check if there are divisors from 2 to the number - 1, and if there is, then the number is composed. If there are no divisors, the number is simple.