Question

(ii) The HCF of this pair of numbers is not 1.
(1) 13, 17 (2) 29, 20 (3) 40,20. (4) 14,15
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Answer 1

Answer:

3)40,20 & 4)14,15

Step-by-step explanation:

Explanation : Prime numbers have the HCF of 1. Therefore we have to choose the pair which do not have any prime numbers. So,we will get the pair of numbers which do not have 1 as their HCF.