Some new Nine Digits Digressions Enjoy also the addictive sliding block puzzle! WONplate 85
December 4, 2000
Joe Crump discovered in the past Tridigital Squares using the Quadratic Residues technique. He explains his method at the following page Tridigital Squares via Quadratic Residues
Sander Hoogendoorn started collecting Home Primes (repeated factorization of concatenated prime factors) beyond 100 (he reached already 312) at Home Primes > 100 The main page for Home Primes up to 100 is still available at Home Primes < 101