Question

which of the following numbers are coprime
a.2 and 4
b. 15 and 23
c.9 and 27
d. 12 and 16​

Answer 1

Answer:

15 and 23 are the coprime numbers

Answer 2

15 and 23

In case of 15 and 23, there is no common factor.

But in others there are common factor.

9 and 27= 3

12 and 16= 2

2 and 4= 2