Question

which of these pair is co- prime number?
a) (7,21)
b) (9,16)
c) (15,35)
d) (22,24)

please answer me fast ​

Answer 1

Answer:b) (9,16)

Step-by-step explanation:

b) (9,16) do not have any common factors exept 1

Answer 2

Answer:

Answer is a

Step-by-step explanation:

it is not divisible by any number except 1