There are lots of Pythagorean triples; triples of whole numbers which satisfy:x2 + y2 = z2. But are there any which satisfyxn + yn =...

Continue reading...# unsolved problem

## Riemann Hypothesis

If you know about complex numbers, you will be able to appreciate one of the great unsolved problems of our...

Continue reading...## Hailstone Numbers

Start with any positive integer (an initial seed) and obtain a sequence of numbers by following these rules. 1. If the...

Continue reading...## Goldbach’s Conjecture

Here’s a famous unsolved problem: is every even number greater than 2 the sum of 2 primes? The Goldbach conjecture, dating from...

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