Question

The students in math class use square tiles to make arrays. Celia says they can make more arrays with 8 tiles than with 9 tiles because 8 has more factors. Is Celia correct?

Answer 1

Yes
8=1,2,4,8,
9=1,3,9

Answer 2

The students in math class use square tiles to make arrays. If they

• use 8 (8=1·2·2·2) tiles, then they can form arrays of the length in 1 tile, 2 tiles, 4 tiles and 8 tiles;
• use 9 (9=1·3·3) tiles, they can form arrays of the length in 1 tile, 3 tiles and 9 tiles (one array less).

So, you can conclude that Celia is correct.