Basically what happens is the game (get there by going to project Euler and register (free, just a nickname to keep track of how many you solve)) is a lot of very difficult math problems.

The fun part is that you can create programs with an algorithm to find it quickly. Or if you're the adventurous type, you could solve it pencil and paper.

Just a simple example of one of the problems...

quote: 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.

This is the easiest problem you can do, and they all progressivly get more difficult. After you complete a problem, you have a thread in their forum opened where people show the strategy they used to solve it.
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That one is very easy to solve with pencil and paper, btw. Hint: any sum of multiples of three is a multiple of three, and any sum of multiples of five is a multiple of five .
Posts: 15770 | Registered: Dec 2001
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Yep, there are some very easy ones to solve pencil and paper, but some of them are a bit harder. Such as find the sum of all primes below one million.
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