Burt Kaliski Jr. (@modulomathy) 3/24/12 10:06 AM #math trivia for #March24: #84 is 2^2*3*7. How many divisors does it have and why? Compare solution to #42: wp.me/p2ef3C-f There are 12 divisors of 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42 and 84. Here’s why the number is 12: Each divisor must … Continue reading →