#math trivia for #May7:  Similar to #127:  How can #128 be computed from 1, 2, and 8 using only two operations from +, -, *, /, ^? — Burt Kaliski Jr. (@modulomathy) May 7, 2012 There’s a small trick:  You have to use either parentheses or superscripts. 128 = 2^(8-1) or 128 = 28-1