What Did I Already Know?

I already knew how to identify odd, even, composite and prime numbers. I also knew how to compare odd and even, composite and prime numbers.
I also knew a lot about factors, multiples, least common multiples (LCM) and greatest common factor (GCF)

What Have I Learned?

I have learned more about comparing two different numbers by using words like abundant, deficient, perfect and near-perfect numbers.