Last visit was: 22 Apr 2026, 18:36 It is currently 22 Apr 2026, 18:36
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.
Close
Request Expert Reply
Confirm Cancel
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 22 Apr 2026
Posts: 109,754
Own Kudos:
810,671
 [4]
Given Kudos: 105,823
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,754
Kudos: 810,671
 [4]
Kudos
Add Kudos
4
Bookmarks
Bookmark this Post
User avatar
athenaaa
Joined: 16 Feb 2021
Last visit: 28 Sep 2021
Posts: 16
Own Kudos:
Given Kudos: 60
Location: India
Concentration: Strategy, Marketing
GPA: 4
Posts: 16
Kudos: 4
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
ScottTargetTestPrep
User avatar
Target Test Prep Representative
Joined: 14 Oct 2015
Last visit: 22 Apr 2026
Posts: 22,278
Own Kudos:
Given Kudos: 302
Status:Founder & CEO
Affiliations: Target Test Prep
Location: United States (CA)
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 22,278
Kudos: 26,528
Kudos
Add Kudos
Bookmarks
Bookmark this Post
avatar
ImChasmish
Joined: 05 Jan 2020
Last visit: 11 Dec 2022
Posts: 18
Own Kudos:
Given Kudos: 49
Location: India
GMAT 1: 640 Q45 V32
GMAT 1: 640 Q45 V32
Posts: 18
Kudos: 4
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Is there any other way apart from prime factorisation to solve this?
It is easy for small numbers but for large ones its a bit tedious
User avatar
CrackverbalGMAT
User avatar
Major Poster
Joined: 03 Oct 2013
Last visit: 22 Apr 2026
Posts: 4,846
Own Kudos:
Given Kudos: 226
Affiliations: CrackVerbal
Location: India
Expert
Expert reply
Posts: 4,846
Kudos: 9,180
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Eliminate 11 as the sum of digits at alternating places is not 0 or a multiple of 11.
When you shall check for the divisibility with 13,you would observe that 13x67=871 and since 67 is a prime number, answer option c is the appropriate choice.
(option c)

Devmitra Sen
GMAT SME
Moderators:
Math Expert
109754 posts
Tuck School Moderator
853 posts