the pairs of factors you multiply to get the product

9 = 1 X9, 3x3

the numbers you count by, skip counting.  Make sure you begin with that number.

(9 =9,18,27...)

a number who has factors of only 1 and itself

7 = 1,7

33 = 33,1

any number that has more than two factors

27 = 27, 1, 9, 3

a number that forms a square when you use the tiles. The product you get when you multiply a factor by itself

25 is square - 5x5 =25

4 is square - 2 x 2 = 16

Any number that has 0,2,4,6,or 8 in the ones place

66

42

128

Any number that has 1,3,5,7,or 9 in the ones place

33

47

179