Target Test Prep 20% Off Flash Sale is on! Code: FLASH20

Redeem
Target Test Prep
5-Day Free Trial
5-day free, full-access trial TTP

Available with Beat the GMAT members only code

MORE DETAILS
Target Test Prep
Magoosh
Magoosh
Study with Magoosh GMAT prep

Available with Beat the GMAT members only code

MORE DETAILS
Magoosh

GMAT Prep Test 2

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 14
Joined: Sat Mar 17, 2007 7:35 pm

GMAT Prep Test 2

by dsuna » Mon Mar 26, 2007 12:14 pm
For any positive integers n, the length of n is defined as the number of prime factors whose product is n. For example, the length of 75 is 3, since 75 = 3x5x5. How many two-digit positive integers have length 6?

Ans. Two
Top
Master | Next Rank: 500 Posts
Posts: 174
Joined: Mon Mar 26, 2007 5:51 am
Thanked: 1 times

by 800GMAT » Mon Mar 26, 2007 1:18 pm
The answer is 2

64= 2.2.2.2.2.2
94= 2.2.2.2.2.3

Any other combination of powers of 2 and 3 gives a three digit number.
Top
Legendary Member
Posts: 559
Joined: Tue Mar 27, 2007 1:29 am
Thanked: 5 times
Followed by:2 members

by Cybermusings » Tue Mar 27, 2007 4:04 am
800GMAT's explanation is fine...Except that it's 96 and not 94
Top
Post new topic Post Reply
• Page 1 of 1