2357.rocks

The beautiful side of numbers — see primes the way mathematicians do, and inspect any integer instantly. Everything runs in your browser; nothing is stored, nothing is tracked.

Every prime p is plotted at polar coordinates (radius = p, angle = p radians). The spiral arms and rays are an artefact of how well fractions approximate 2π — pure number theory, no design. Learn more

Is your number prime?

Start with a curious number