Question

Which of the following numbers are
Co-primes
8,15
9,18
15,18
8,12
​

Answer 1

Answer:

8, 15

Step-by-step explanation:

8, 15 ⇒ Doesn't have any common factor except 1

9, 18⇒ common factor =  3

15, 18 ⇒common factor = 3

8, 12 ⇒ common factor = 2

Hence 8, 15 are co=primes