28a Multiples and factors (xlsx)

A spreadsheet that displays the multiples and factors of two or three integers.

Input 2 or 3 integers and multiples are highlighted in 1-100 number squares. One square shows the multiples of the first integer. Another shows the multiples of the second integer. The third shows the multiples of both.
The same is shown for factors.

There are 5 sheets:
a) factors of two integers (three 1-100 number grids)
b) factors of three integers (seven 1-100 number grids)
c) multiples of two integers (three 1-100 number grids)
d) multiples of three integers (seven 1-100 number grids)
e) multiples of two integers (one 1-1050 number grid)

The sheets are protected so students/teachers can only type in integers in the correct cells. They can be easily unprotected to make changes.

I would welcome any suggestions for improvement.