Ans my ques having doubt how to solve

4. Let the universal set be U ={x ; x $\epsilon$ W and x < 9}. Also, A = {factors of 6} and B = {factors of 8}. Find the following sets.
(i) A' 
(ii) B'
(iii) A' $\cap$ B'
(iv) A' $\cup$ B'
Also, verify the following
(a) (A $\cup$ B)' = A' $\cap$ B'
(b) (A $\cap$ B)' = A' $\cup$ B'
(c) A $\cup$ (B $\cap$ C) = (A $\cup$ B) $\cap$ (A $\cup$ C)
(d) A $\cap$ (B$\cup$ C) = (A $\cap$ B) $\cup$ (A $\cup$ C)