GitHub repository: CyberknightMrAA/Multiples-of-3-and-5
Primary language: C
Description: If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6, and 9. The sum of these multiples is 23. Find the sum of all the multiples of 3 or 5 below 1000.