Answer question 5

Use c++

4. Write a simple program that calculates the factorial. Prompt user for the input and then display the factorial result. 5. Write a program that asks the user for an integer. The program checks and prints to the screen whether the number is prime or not. For example, if user enters 17, the program should print "17 is prime", if the user enters 20. the program should print "20 is not prime