#math trivia for #September20: #263 has no digits in common with its base-N representation for which N < 10? — Burt Kaliski Jr. (@modulomathy) September 21, 2013 The base-N representations of 263 for N = 2, …, 9 are: 100000111 base 2 100202 base 3 10013 base 4 2023 base 5 1115 base 6 524 … Continue reading →