This is the Factor Captor game board.

We played factor captor. This is how you play. One player picks a two digit number and covers it. The other player then covers all the factors of that number.

For example: If I cover the number 27, I get 27 points. Now, the other players covers 1, 3, and 9. She gets 14. Then the other player goes first for the next round and those numbers (27,9,3,1) stay covered.

The person that goes first has the advantage because that person should a cover a prime number like 47. You should pick a prime number because the other player can only get 1 point because you covered 47and the only other factor is 1. So, you get 47 points in that round and the other player only gets 1 point.