Determine whether the pairs of numbers given below are co-prime numbers:

i. (12,18)

ii. (26, 39)

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1 Answers

i. (12,18)

Common factors of 12 and 18 are 1, 2, 3, 6. 

Hence, 12 and 18 are not co-prime numbers.

ii. (26, 39)

Common factors of 26 and 39 are 1 and 13.

Hence, 26 and 39 are not co-prime numbers.

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