Study and Strategy questions relating to the GMAT.
jon_shibata
 
 

If p is the product of the integers from 1 to 30, inclusive,

by jon_shibata Sun Oct 05, 2008 7:39 pm

QUESTION:
If p is the product of the integers from 1 to 30, inclusive, what is the greatest integer k for
which 3^k is a factor of p?
A. 10
B. 12
C. 14
D. 16
E. 18

ANSWER:
30/3 + 30/9 + 30/27

10 + 3 + 1 = 14

THIS IS THE ANSWER, BUT I STILL DON'T GET THE LOGIC BEHIND THE WORK...CAN SOMEONE EXPLAIN THIS FURTHER?
StaceyKoprince
ManhattanGMAT Staff
 
Posts: 9361
Joined: Wed Oct 19, 2005 9:05 am
Location: Montreal
 

by StaceyKoprince Mon Oct 06, 2008 2:52 pm

Please read (and follow!) the forum guidelines before posting.

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Please check the forum guidelines for BANNED sources before you post. If your problem is from a banned source (such as OG) then, unfortunately, we can't discuss it here. If you are in a class, you can ask during office hours or ask your teacher before or after class.

Thanks!
Stacey Koprince
Instructor
Director, Content & Curriculum
ManhattanPrep