#math trivia for #September8: #251 is the largest 8-bit prime. What are the largest 2-, 3-, 4-, 5-, 6- and 7-bit primes? (Why no 1-bits?) — Burt Kaliski Jr. (@modulomathy) September 8, 2013 The largest primes of length 2 to 7 bits are 3, 7, 13, 31, 61, and 127. As it turns out, the … Continue reading