Question

1. Which of the following pairs are co-prime?
(a) 14.20
(b) 15. 28
(c) 50,5​

Answer 1

15,28 is the pair of co-prime

Answer 2

Answer:

OPTION A

Step-by-step explanation:

In number theory, Co-prime numbers are those numbers if the only positive factor that divides them is 1.

Here,

Option A: (17,15) Factor that divides both of them is 1.

Option B: (10,16) Factors that divides both oh them are 1,2.

Option C: (20,24) Factors that divide both of them are 1,2,4.

Option C: (31,62) Factors that divide both oh them are 1,31.

In reference to above definition (17,15) are co-prime numbers.

Hence Option A is correct.