#math trivia for #February15: 46 is a nontrivial (multi-digit) palindrome in base 4 (46 = 232 base 4) and which four other bases? — Burt Kaliski Jr. (@modulomathy) February 15, 2012 A positive integer x can be expressed in any base b ≥ 2 as a sum of weighted powers x = dk-1 bk-1 + dk-2 bk-2 … Continue reading