Prime
Lattice
Every integer placed on a tiling. Primes light up. Look for the lines.
◀ The HABB Game Room
Tiling
Ulam spiral
Square grid
Hex spiral
Triangles
Sacks spiral
Prime walk
Gaussian primes
How many numbers
Columns
(grid & triangles)
auto
primorial:
2
6
30
210
Shade dead columns (φ law)
Highlight a prime family
None — all primes one color
Twin (p±2 prime)
Cousin (p±4 prime)
Sexy (p±6 prime)
Sophie Germain (2p+1 prime)
Safe ((p−1)/2 prime)
Mersenne (2ⁿ−1)
Palindromic
Emirp (reversal is a different prime)
Split by p mod 4 (1 vs 3)
Colors
primes
family
Show composites (dim)
Numbers when zoomed in
Reset view
Save PNG
Wheel = zoom · drag = pan · click a tile to inspect.
Heir to the 2014 Prime Number Table. Single file, no dependencies.
click a tile
wheel zoom · drag pan