Multifactor ($20.95)

Offers challenging practice with basic multiplication facts, factoring, and finding prime factors at two levels of play. Offensive and defensive strategies add interest and intrigue. The playing field is divided into four zones distinguished by color. Points earned for placing a chip in a zone are shown as a background number 1 through 5. The winner is the player with the highest number of points after a pre-determined number of rounds, a certain number of spaces have been claimed, or when a time limit is reached. For two players or teams.