someone tell me how this works?
Posted: Tue Jul 18, 2006 2:47 pm
Conquer Club, a free online multiplayer variation of a popular world domination board game.
https://rc.conquerclub.com/forum/
Proof
let digit 1 be x
let the second digit be y
the number xy can be written as 10x + y
10x+y - (x + y) = 9x...
9x is a multiple of 9 QED
PaperPlunger wrote:f*ck! I started this post like half an hour ago, then stupid sir gordalot goes and posts while I wasa researching!! argh!