Write a program that finds the sum of all numbers between 0 and 120 (inclusive) that are multiples of 4 or 5. BONUS: allow the user to input their own values for all four variables (both ends of the range and the factors to find multiples).

Do you remember prime factorisation trees? 36 9 4 3 3 2 2 Using the diagram, you can see that 3 is the largest prime factor of 36. Your job is to create a program that outputs the largest prime factor of 40478. (BONUS: allow the user to input any number they wish while running the program)

A prime number is a number that cannot be divided by any number other than 1 and itself (ie. 2, 17, 53, etc.). Find the sum of all prime numbers from 0 to 7600 (2 + 3 + 5 + 7 + 11 + 13... = ?).

This is where you can find new problems to solve with code. Feel free to post your unique solutions under threads or make your own problems for others to solve. Have fun, and don't forget to ask for help when you need it!