TestMagic Forums - View Single Post

Jaguar36608 · 07-19-2008, 07:41 PM

If n=2^4*3*5, how many factors of n are greater than or equal to 8 and less than or equal to 30?
(A) 8
(B) 9
(C) 10
(D) 12
(E) 15

Please explain your method. It took me around 4 mins to solve this question.

Thank you.

07-19-2008, 07:41 PM	#1 (permalink)
Jaguar36608 Within my grasp! Join Date: May 2006 Posts: 112	factors If n=2^435, how many factors of n are greater than or equal to 8 and less than or equal to 30? (A) 8 (B) 9 (C) 10 (D) 12 (E) 15 Please explain your method. It took me around 4 mins to solve this question. Thank you.