Prime Pattern

xkcd

So there is a method to the madness! “ 'If there’s no interaction between primes, that’s what you would expect,' says [Stanford number theorist Kannan] Soundararajan. 'But in fact, something funny happens.' Despite each final digit appearing roughly the same amount of the time, there’s a bias in the order in which these final digits appear. A prime that ends in 7, for example, is far less likely to be followed by a prime that also ends in 7 than a prime that ends in 9, 3 or 1." Intriguing, yes, but here's my favorite part: "The discovery of the final digit bias has 'no conceivable practical use,' says Andrew Granville, a number theorist at the University of Montreal and University College London. 'The point is the wonder of the discovery' ": https://www.sciencenews.org/article/mathematicians-find-peculiar-pattern-primes?tgt=nr