Question

Please guys help me in this.

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Answer 1

Answer:

D

d is the right answer because 1 and 3 both are the common factor of 12 and 21

Co-prime numbers are those numbers that have their HCF ( Highest Common Factor) as 1.

so , 12 and 21 are not co-prime

Answer 2

Step-by-step explanation:

i think d fgbhtxvbgdadbmjgdscvb