Question

Which of the following is a
co-prime number
the following

22 and 56
289 and 16
3818 and 27
443 0 and 45​

Answer 1

Answer:

a is the correct answer

Answer 2

Co-prime means the HCF should be 1.
1)22 and 56 are not co-prime because their HCF is not 1.
2)289 and 16 are co-prime because their HCF is 1.
3)3818 and 27 are not co-prime because their HCF is not 1.
4)4430 and 45 are not co-prime because their HCF is not 1.