#math trivia for #June15: #167 is x*(x+2)-1 for what value of x? — Burt Kaliski Jr. (@modulomathy) June 16, 2012 This one is fairly straightforward:  If we want x*(x+2)-1 = 167, then we need x and (x+2) to be factors of 168.  Given that 168 = 12*14, it follows that x is 12. We should … Continue reading →