Please help me use Cases,Except on list data. I just want to remove all primes, or equivocally to see only the values in the list produced that aren't prime. the prime factorization of those values are what I want to know, but I can't seem to figure that out either. Maybe I'm going about this wrong. I have an expression I'm putting in like so:
PrimeFactorization desired of...Cases[(expression here),Except[any primes???]]
I know, I'm retarded at this.