#math trivia for #April18: #109 is the sum of five different powers of 2, or three different powers of 3. What are they? — Burt Kaliski Jr. (@modulomathy) April 18, 2012 Binary (base 2) and ternary (base 3) representations give the answer: 109 = 81+27+1 = 11001 base 3 109 = 64+32+8+4+1 = 1101101 base … Continue reading →