Multiple choice

Which of the following are not co-primes?

  1. 83 and 38

  2. 78 and 117

  3. 99 and 19

  4. 47 and 74

  5. -
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct answer. HCF of co-prime numbers is 1. 

Keep practicing — related questions