Select the pair of numbers that are co-prime.

21 and 14

9 and 5

12 and 18

8 and 16

Video Explanation

Watch Video Solution

Keep Practising

Students who asked this also explored

Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.

Q1.

Which of the following is a common multiple of 3 and 5?

Q2.

What do players say for the number 9 in the Idli-Vada game?

Q3.

Identify a common factor of 12 and 18.

Q4.

Which of the following numbers is NOT a common multiple of 3?