Question

which of the pair is not co prime
options-2 and 3, 6 and 7, 9 and 10, 12 and 15

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Answer:

The pair (12,15) is Not a Co-prime.

Step-by-step explanation:

Since,  (12=3×4,15=3×5) Have 3 As a Common Factor.