BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course
Redeem
Featured Course
Target Test Prep GMAT OnDemand
Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.
- 715+ score guarantee — highest in the industry (99th percentile)
- 52 chapters · 1,500+ lessons · 4,000+ practice questions
- 400 hours of video · 1,500+ instructor-led HD smartboard lessons
- 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
- 24/7 live support + weekly Zoom office hours with GMAT instructors
- TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
- 1,200+ flashcards + AI-powered study assistant & daily calendar
- OnDemand, LiveTeach & GMAT Bootcamp formats available
- Also: GRE, SAT Math & Executive Assessment courses
- MBA Admissions Consulting now available
- 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
- 200,000+ students served
- 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★
5.0
(559 reviews)
130-pt guarantee
$0 to start
then $127/mo
math
Source: Beat The GMAT — Problem Solving |
Yes.
They have called the 5 numbers the factors. The means, the question is essentially asking,
In a product, 11 * 13 * 17 * 19 * 23, reducing which of the 5 factors by 1 (11 to 10, 13 to 12.... )reduces the product.
Option A: 11
11 * 13 * 17 * 19 * 23 is now 10 * 13 * 17 * 19 * 23
So reduction is the difference (11-10) 1 * 13 * 17 * 19 * 23
Option B: 13
11 * 13 * 17 * 19 * 23 is now 11 * 12 * 17 * 19 * 23
Difference: 11 * 17 * 19 * 23
If you see this number is smaller than the difference above. In all other choices.. difference will keep reducing.
Hence the answer.
They have called the 5 numbers the factors. The means, the question is essentially asking,
In a product, 11 * 13 * 17 * 19 * 23, reducing which of the 5 factors by 1 (11 to 10, 13 to 12.... )reduces the product.
Option A: 11
11 * 13 * 17 * 19 * 23 is now 10 * 13 * 17 * 19 * 23
So reduction is the difference (11-10) 1 * 13 * 17 * 19 * 23
Option B: 13
11 * 13 * 17 * 19 * 23 is now 11 * 12 * 17 * 19 * 23
Difference: 11 * 17 * 19 * 23
If you see this number is smaller than the difference above. In all other choices.. difference will keep reducing.
Hence the answer.
Vineesh,
Just telling you what I know and think. I am not the expert.
Just telling you what I know and think. I am not the expert.
