How would one know to convert 96 into either:
2^10*3^2
OR
8^2*3^2*2^4
RE: OG QUANT REVIEW Q 163 (GREEN BOOK)
Any advice would be much appreciated...
5-Day Free Trial
5-day free, full-access trial TTP
Available with Beat the GMAT members only code
MORE DETAILS
Converting numbers to exponential form?
This topic has expert replies
-
bekkilyn
- Senior | Next Rank: 100 Posts
- Posts: 81
- Joined: Mon Oct 06, 2008 9:06 am
- Location: United States
- Thanked: 5 times
My green book is still in the mail so I can't look at the problem, but I can't see how either of those calculations can be equal to 96. Just multiplying them together shows much larger numbers.
When I factor down to the prime powers, I get (3)(2^5) which does equal 96.
When I factor down to the prime powers, I get (3)(2^5) which does equal 96.
-
Gmatss
- Senior | Next Rank: 100 Posts
- Posts: 67
- Joined: Tue Sep 16, 2008 9:29 pm
- Location: new york
- Thanked: 2 times
another way is, look at the above and try to cancle out the factors they put in for you. Gmat cannot ask you to factor that down in less than 2 mins, so u can try to factor the numerators and see which ones come out
