Write a program that will ask the user to enter lower limit and upper limit in form of integers. The program will calculate and show the prime numbers within the range from lower limit to upper limit. All the prime numbers within the specified range should be displayed on the output. The program should also aggregate all the prime numbers within the range and show their sum as well. Also show the total number of prime numbers within the specified range.

This sounds like fun.
How are you going to start the program?
What technique will you use to determine if a number is a prime?