Question

Which of the following are co - primes?

a 8, 10
b) 9, 10
c) 6,8
d) 15,18​

Answer 1

Answer:

b) 9,10

Step-by-step explanation:

When two numbers have no common factors other than 1. In other words there is no whole number that you could divide them both by exactly (without any remainder).

Answer 2

(d) 15,18 though both 9 and 10 are composite numbers , the only factor common to them is . Therefore,9 and 10 are co prime