Question

Which of the following is a pair of co-prime numbers?
(a) 8 and 45
(b) 3 and 18
(c) 5 and 35​

Answer 1

Answer:

option a is correct that numbers are

(a) 8 and 45

Answer 2

(a) 8 and 45

Step-by-step explanation:

Note :-

The two numbers whose any factor is not common, except 1, are called co-prime numbers.

So,

8s factor = 1, 2, 4, 8

and

45s factor = 1, 3, 5, 9, 15, 45

Except 1, no other factor is common.

So,

8 and 45 are co-prime numbers.

While,

in 3 and 18 - 3 is common factor.

And in 5 and 35 - 5 is common factor.

Hence,

Correct answer is (a) 8 and 45.

Hope it helps.

#BeBrainly :-)