Last visit was: 17 Sep 2026, 02:21 It is currently 17 Sep 2026, 02:21
Home
Messages
Tests
Schools
Events
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
User avatar
CareerGeek
User avatar
Joined: 20 Jul 2017
Last visit: 16 Sep 2026
Posts: 1,285
Own Kudos:
4,567
 [1]
Given Kudos: 162
Location: India
Concentration: Entrepreneurship, Marketing
GMAT 1: 690 Q51 V30
WE:Education (Education)
GMAT 1: 690 Q51 V30
Posts: 1,285
Kudos: 4,567
 [1]
Which of the following can never be a divisor of 4n - 2? Updated on: 22 Feb 2020, 08:21
Originally posted by CareerGeek on 21 Feb 2020, 20:06.
Last edited by CareerGeek on 22 Feb 2020, 08:21, edited 1 time in total.
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

35% (medium)

Question Stats:

69% (01:41) correct 31% (01:37) wrong based on 132 sessions

History

Date
Time
Result
Not Attempted Yet
For any integer n, Which of the following can never be a divisor of 4n - 2?

A. 5
B. 6
C. 7
D. 8
E. 9

Posted from my mobile device
ShowHide Answer
Official Answer
D
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 17 Sep 2026
Posts: 113,607
Own Kudos:
841,792
 [1]
Given Kudos: 111,601
Products:
GMAT Club Tests
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 113,607
Kudos: 841,792
 [1]
Which of the following can never be a divisor of 4n - 2? 22 Feb 2020, 08:00
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Dillesh4096
Which of the following can never be a divisor of 4n - 2?

A. 5
B. 6
C. 7
D. 8
E. 9

Posted from my mobile device
Show more

Each of them could be a divisor of 4n - 2. I think the question should specify that n is an integer here.
User avatar
CareerGeek
User avatar
Joined: 20 Jul 2017
Last visit: 16 Sep 2026
Posts: 1,285
Own Kudos:
4,567
Given Kudos: 162
Location: India
Concentration: Entrepreneurship, Marketing
GMAT 1: 690 Q51 V30
WE:Education (Education)
GMAT 1: 690 Q51 V30
Posts: 1,285
Kudos: 4,567
Which of the following can never be a divisor of 4n - 2? 22 Feb 2020, 08:20
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel

Each of them could be a divisor of 4n - 2. I think the question should specify that n is an integer here.
Show more

Bunuel

Thank you. I missed it. Edited

Posted from my mobile device
User avatar
Stollizei
User avatar
Joined: 08 Dec 2019
Last visit: 11 Mar 2025
Posts: 1
Given Kudos: 614
Location: Austria
Schools: UniBocconi MFin "23 (D)
GMAT 1: 710 Q49 V39
Schools: UniBocconi MFin "23 (D)
GMAT 1: 710 Q49 V39
Posts: 1
Kudos: 0
Which of the following can never be a divisor of 4n - 2? 22 Feb 2020, 08:43
Kudos
Add Kudos
Bookmarks
Bookmark this Post
if n = 2: 4*2 - 2 =6 (divisible by 6)
if n = 3: 4*3 - 2 =10 (divisible by 5)
if n = 4: 4*4 - 2 = 14 (divisible by 7)
if n = 5: 4*5 - 2 = 18 (divisible by 9)

Hence, the correct answer is D.
User avatar
TestPrepUnlimited
User avatar
Joined: 17 Sep 2014
Last visit: 30 Jun 2022
Posts: 1,221
Own Kudos:
1,158
Given Kudos: 6
Location: United States
GMAT 1: 780 Q51 V45
GRE 1: Q170 V167
Expert
Expert reply
GMAT 1: 780 Q51 V45
GRE 1: Q170 V167
Posts: 1,221
Kudos: 1,158
Which of the following can never be a divisor of 4n - 2? 22 Feb 2020, 10:33
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Dillesh4096
For any integer n, Which of the following can never be a divisor of 4n - 2?

A. 5
B. 6
C. 7
D. 8
E. 9

Posted from my mobile device
Show more

Number properties

We can check answers by plugging in various n's. Logically, however, \(4n - 2\) is never a multiple of 4. This is because we subtracted 2 from a multiple of 4. Since \(4n - 2\) is never a multiple of 4, it cannot be a multiple of 8 either.

Ans: D
User avatar
Umber
User avatar
Joined: 25 Jul 2024
Last visit: 01 Jun 2025
Posts: 17
Own Kudos:
8
 [1]
Given Kudos: 7
Posts: 17
Kudos: 8
 [1]
Which of the following can never be a divisor of 4n - 2? 30 Nov 2024, 00:12
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
2(2n-1)

It will be divisible by all the odd numbers including 6 as 6 is 2*3 in which 2 gets cancelled out and 3 will divide 2n-1.
Moderator:
Bunuel
Math Expert
113607 posts