Which of the following pairs of numbers are coprime? 6) 12 and 35 (1) 15 and 37 (F) 27 and 32 (10) 17 and 85 0 515 and 516 (o) 215 and 415
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are numbers that have only 1 as their HCF.
(a) 18 and 35
18 and 35 have no common factors, Therefore, 18 and 35 are coprime numbers.
(b) 15 and 37
As they have no common factors, 15 and 37 are co-prime numbers.
(c) 30 and 415
As they have a common factor 5, hence, 30 and 415 are not co-prime.
(d) 17 and 168
As they have no common factors, 17 and 168 are coprime numbers.
(e) 216 and 215
As they have no common factors, 216 and 215 are coprime numbers.
(f) 81 and 16
As they have no common factors, they are co-prime numbers.
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