BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
GMATBootcamp Starts Sep 28
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE BOOTCAMP

Live Online Bootcamp Class with Top GMAT Expert Chris Peckover

15 live classes from Sep 28, 2026

Schedule
Mon to Fri · 7:00 to 10:00 PM ET
Included
Live classes + 6 months of TTP OnDemand
  • Boost your GMAT score in less than one month in a live online class
  • 6 months access to TTP OnDemand video courses included
View bootcamp & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

factors

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
Legendary Member
Posts: 2467
Joined: Thu Aug 28, 2008 6:14 pmFollowed by: 11 members
Thanked: 331 times

by cramya » Sat Apr 04, 2009 7:37 am
When u see any number properties question prime factorizing would be a good place to start to see if we can get somewhere(easier to see connections and establish relationships)

450 = 2*5^2*3^2

450y = n^3

When an integer is cubed its distinct prime factors will also be cubed.

2*5^2*3^2 * y = (n)^3

We know y must definitely be 2^2*3*5 since RHS is a cubed term(n)



So I must definitely be an integer since its a must be true. The other could be but we focus on the must be true part which leads us to just I

Hope this helps!

Regards,
CR
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Newbie | Next Rank: 10 Posts
Posts: 3
Joined: Sat Apr 04, 2009 10:15 am

by brotherwo » Sat Apr 04, 2009 11:01 am
I am losing you on this one..sorry, how do you elimate the other two options. :( Thanks!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 2467
Joined: Thu Aug 28, 2008 6:14 pmFollowed by: 11 members
Thanked: 331 times

by cramya » Sat Apr 04, 2009 10:40 pm
I am losing you on this one..sorry, how do you elimate the other two options. Thanks!

y at a minumum needs to be 2*2*3*5 based on the constraint 450y=n^3 and since the question which of the following "must be" the answer is just I

Search for could be true and must be true questions on this forum and u will find the difference in the answer choices that need to be picked. I have seen quite a few GMAT PREP software questions of this type also

II and III could be integers i.e if y had an extra 3 then II could be and if y had an extra 5 III could be an integer.

Hope this helps!

Regards,
CR
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1