What is factor captor?

Factor Captor is a game where one player picks a product and that player's opponent tries to find all of the factors of that number. But, if that player has missed a factor, the other player can cross that factor off and get the points. You keep on playing until all of the factor have been used. Remember, you can use a factor only once, so choose carefully! You can go to everydaymathonline.com to play Factor Captor, if you have an account on it, of course.