This is a new contest in the Brainsteem family. I have noticed a lot of solutions to past problems are given using computational methods. So, just for you, a new series specifically designed to be solved computationally. You may also give analytical solutions as the early ones will be fairly simple.
The Question
If we list all the natural numbers below 20 that are multiples of 5 or 7, we get 5, 7, 10, 14 and 15. The sum of these multiples is 51.
Find the sum of all the multiples of 5 or 7 below 2000.
For the First Prize, please include a valid analytical or computational method.
Prizes
To qualify you must upvote this post and write the answer in a comment.
To win First Prize you must include the answer and a valid method.
The First Prize will be 40% of the earnings generated by this post, paid in SBD.
The Second Prize will be 10% of the earnings generated by this post, awarded to any other correct answer in the comments section, chosen at random and paid in SBD.
Also remember that your upvote generates curation rewards for you and that 25% of all earnings are given to upvoters.
Prizes will be awarded after the 7 days have expired. Winners will be announced in the comments below after the draw.
The Prizes will increase with more participation and as the earnings increase.
The main thing is to enjoy the challenge and maybe learn something new.
Come and check out other challenges currently live!
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