#mathematics

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The Task The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below two million. This task is so easy that it is...

The Task A Pythagorean triplet is a set of three natural numbers, a < b < c, for which a^2 + b^2 = c^2. For example, 32 + 42 = 9 + 16 = 25 =...

Let's start the new PicoLisp Year 2022 with a little warm-up: The third task from the Project Euler which is a rather easy, but yet interesting...

Task description The Fibonacci sequence is a sequence Fn of natural numbers defined recursively: F0 = 0 F1 = 1 Fn = Fn-1 + Fn-2, if n>1 Write a...

The Task: 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...

Mathematics consists of proving the most obvious thing in the least obvious way. (George Pólya, Hungarian mathematician) · This series will be about the...