Question

which of the following are coprime a)51,6 b)14,22 c)11,13 d)11,121

Answer 1

Answer:      c)11,13

a)51,6

this is not a co-prime because its HCF is 1 and 3

b)14,22

this is not a co-prime because its HCF is 1 and 2

c)11,13

this is a co-prime because its HCF is 1

d)11,121

this is not a co-prime because its HCF is 1 and 11

Step-by-step explanation:

A Co-prime number is a set of numbers or integers which have only 1 as their common factor i.e. their highest common factor (HCF) will be 1.