Chapter 7, Problem 12PE

Program Plan Intro

Prime Number Generation

Program plan:

• • Declare a function named “checkPrime()” that accepts an input number.
  • ○ Use a “for” loop to check whether the passed number has any factor in the range from “2” to “mynum-1”.
  • ○ Inside the “for” loop, use “if” statement to check whether the passed number is divisible by the current loop variable.
  • ○ If the condition is true, then print the message “The number is not a prime number” along with the passed number and exit the loop.
  • ○ If the passed number does not have factors in the range of integers from “2” to “mynum-1”, then print the message “The number is a prime number” along with the passed number.
• • In the “main()” function, perform the following steps:
  • ○ Get a number from the user and store it in a variable “howMany”.
  • ○ Now, create a list of integers from “2” to “howMany” using the built-in functions “list()” and “range()”.
  • ○ Using a “for” loop, call the function “checkPrime()” to check whether the current element in the list is a prime number.
• • Finally, call the function “main()” to execute the program.