Tag Archives: Eratosthenes

A few words about PWW #27

Posted on October 24, 2019 by Brent

The images in my last post were particular realizations of the famous Sieve of Eratosthenes. The basic idea of the sieve is to repeatedly do the following: Circle the next number bigger than that is not yet crossed out, call … Continue reading →

Posted in pattern, pictures, posts without words, primes | Tagged , , | 4 Comments

Post without words #27

Posted on October 21, 2019 by Brent
Posted in pattern, pictures, posts without words, primes | Tagged , , | 7 Comments

Animated Sieve of Eratosthenes

Posted on April 11, 2013 by Brent

Here’s something I made yesterday! (Note, I strongly suggest watching it fullscreen, in HD if you have the bandwidth for it.) Can you figure out what’s going on? The source code for the animation is here; I was inspired by … Continue reading →

Posted in arithmetic, counting, pattern, pictures, primes, video | Tagged , , , , | 12 Comments