I thought the answer is E) but the correct answer is C)....Can anyone explain why?
![Confused :?](./images/smilies/confused.png)
10. The numbers in which of the following pairs do NOT have a pair of distinct prime divisors in common ?
(A) 10 and 20
(B) 12 and 18
(C) 24 and 32
(D) 21 and 63
(E) 22 and 88