Question

Which of the following numbers are pair of coprime (8,14 ;4,5;18,20;27,15

Answer 1

Answer:

(4,5)

Step-by-step explanation:

HCF should be 1 for coprime pairs..

here (4,5) hcf =1

Answer 2

Answer:

4,5

Step-by-step explanation:

because they have no common HCF except 1 but in case of 8,14 2 is common HCF. in case of 18 and 20 2is the common table and in case of 27and 15 3 is the common HCF therefore only 4,5 are coprime in nature