Add the function to a PyDev module named functions. py. Test it from t2.py. A prime number is a positive integer greater than 1 which has no other factors except 1 and the number itself. 2, 3, 5, and 7 are prime numbers as they can only be divided by 1 and by themselves to give a whole number. 4 is not a prime because, 4 can be divided by 1,2 and 4 . The function does not ask for input and does no printing - that is done by your test program. The function must use a while loop. Sample execution: is_prime_number (131) True Test the function with three different sets of parameters. Partial testing: Test functions.py:.