What you can do is see what the numbers can be divisible by. Sooo...
what can go into 33, 55, and 132? Just to let you know it is to be the GREATEST common factor. For example 4 and 8. You can't use 2. It's not the greatest. You would use 4 because 4 is the greatest and can co into 8 and 4 evenly.
