A focused practice platform for competitive-exam MCQs, subject wise, topic wise practice, and current affairs revision.

Exams

SSC CGL
UPSC CSE
IBPS PO
RRB NTPC
CDS

Subjects

Mathematics
Physics
General Knowledge
English
Reasoning

Resources

Current Affairs
Search MCQs
Practice Sets

Company

About Us
Contact
Privacy Policy
Terms of Use
Disclaimer
Copyright

Practice library for exams, subjects, and daily revision.Educational content only.

© 2026 OBJECTIVEMCQAll rights reserved

ObjectiveMCQ

Print Protected

Printing this content is disabled

This page is protected for print. Use the website to view the content.

Which of the following numbers are prime? - Practice - ObjectiveMCQ

HomePracticeMathNumber TheoryWhich of the following numbers are ...

Number Theory MathEasy

Which of the following numbers are prime?

Correct Answers: A, C — 2; 11

2 and 11 are prime. 9 and 15 are composite numbers.

Related Practice

Enter the average of 20, 25, and 30.
Two dice are rolled. What is the probability that their sum is an even number?
A die is rolled once. What is the probability of getting a composite number?
Two dice are thrown. What is the probability that the product of the numbers is even?
A die is rolled once. What is the probability of getting an odd number?
Two dice are rolled. What is the probability that both show even numbers?
Two dice are thrown. What is the probability of getting a sum less than 5?
A die is rolled. What is the probability of not getting a 5?