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
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & 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
Live EA class + 6 months of EA OnDemand
  • Expert-led weekly online sessions
  • EA Masterclass access between classes
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.

130-point 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.

function, factors

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Newbie | Next Rank: 10 Posts
Posts: 2
Joined: Mon Feb 02, 2009 11:59 am
GMAT Score:580
by giaxou » Wed Feb 04, 2009 7:52 am
Can someone pls explain steps in solving this? Thanks!

For every positive integer n, the function h(n) is defined to be the product of all the even integers from 2 to n, inclusive. If p is the smallest prime factor of h(100)+1, then p is
A) between 2 - 10
B) between 10 - 20
C) between 20 - 30
D) between 30 - 40
D) > 40
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 158
Joined: Tue Sep 30, 2008 8:47 amFollowed by: 1 member
Thanked: 23 times
GMAT Score:660

by DeepakR » Wed Feb 04, 2009 8:58 am
I am not too sure about this. May be someone can correct me if am wrong.
h(100)=(2*4...100)=2(1*2*3...*50)=2(50*51)/2=2550.

Now prime factors for h(100)=2*17*5*3 which is >40. 1 is neither prime nor composite so i am leaving it. Hence Ans.) D ?

- Deepak
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Junior | Next Rank: 30 Posts
Posts: 23
Joined: Sat Jan 10, 2009 10:39 am

by Hopper39 » Wed Feb 04, 2009 12:02 pm
Good explanation here:

https://www.manhattangmat.com/forums/for ... t1152.html

That said, Deepak, I think the formula that you used below (1*2*3*...50)=(50*51)/2 only works for an additive formula, not a product formula.

(1+2+3+4+5) = (5*6)/2 = 15
BUT (1*2*3*4*5) does not = (5*6)/2 = 15, actual is 120.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1