Math, asked by Sveta, 1 year ago

which of the following is a pair of co-primes?
The options are
30,35
60,62
18,21
17,21
please explain me step by step.

Answers

Answered by pankil7

1

Answer:

d)17,21

because the hcf of 17,21 is 1

and co-prime number means the hcf of two no.s should be one

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