I just need some clarification as to what this terminology means in this situation.
A decision problem for $FACTORING$ is as follows.
INPUT: an integer $n$ and a integer $d$
QUESTION: does $n$ have a prime factor less than $d$?
How would $¬FACTORING$ change the question?
Would it change the question to: does $n$ not have a prime factor less than $d$?
Or does $n$ have a prime factor greater than $d$?