Whole numbers and factors.
This small program helps students get to grips with factors. You play against the Mac and must choose a number from a series of numbers. You score points for your number (eg number 4 = 4 points). You can only choose a number to which there is at least one unchosen factor also present in the list. The mac then “chooses” (and wins points for) all the numbers on the list that are factors of the number that you chose. At the end of the game the Mac also wins the points corresponding to the integers that have not been divided. The winner is the one with the most points. You can play with lists of 10, 30, 50 or 70 numbers.