Question

QIV. Determine whether the pairs of numbers

given below are co-prime numbers.

a)20, 22

b)18, 19.
The best answer will be marked as brainliest .​

Answer 1

Step-by-step explanation:

To solve this question you need to know what co-prime means?

Co-prime numbers are the numbers with has only 1 as common factors.

So, lets solve

a)20, 22

Factors of 20:- 1, 2, 4, 5, 10 and 20

Factors of 22 :- 1, 2, 11 and 22.

20&22 Are not coprime as common factor is 1 & 2. (we can say they are coprime if only 1 is common facto)

b) 18 & 19

factors of 18:-1, 2, 3, 6, 9 and 18.

Factors of 19 :-  1 and 19.

18 & 19 Are are coprime as common factor is 1 .