Which of the following numbers is different from the rest?

13, 17, 23, 27, 29

This question was previously asked in
UP Police Constable Re-Exam 2024 Official Paper (Held On: 23 Aug, 2024 Shift 2)
View all UP Police Constable Papers >
  1. 23
  2. 27
  3. 13
  4. 17

Answer (Detailed Solution Below)

Option 2 : 27
Free
UP Police Constable Re-Exam Full Test 10
1.1 Lakh Users
150 Questions 300 Marks 120 Mins

Detailed Solution

Download Solution PDF

The logic followed here is : All the numbers are prime numbers.

So,

13 → Prime number

17 → Prime number

23 → Prime number

27 → Not prime number ⇒ (Factors of 27 are 1, 3, 9 and 27)

29 → Prime number

Thus, "27" is different from the rest.

Hence, "Option - (2)" is the correct answer.

Latest UP Police Constable Updates

Last updated on Jun 11, 2025

-> UP Police Constable 2025 Notification will be released for 19220 vacancies by June 15th 2025.

-> Check UPSC Prelims Result 2025, UPSC IFS Result 2025UPSC Prelims Cutoff 2025, UPSC Prelims Result 2025 Name Wise & Rollno. Wise

-> UPPRPB Constable application window is expected to open in June 2025.

-> UP Constable selection is based on Written Examination, Document Verification, Physical Measurements Test, and Physical Efficiency Test.

-> Candidates can attend the UP Police Constable and can check the UP Police Constable Previous Year Papers. Also, check UP Police Constable Exam Analysis.

Get Free Access Now
Hot Links: all teen patti game teen patti gold new version 2024 teen patti master teen patti gold online teen patti joy 51 bonus