Question

Q 14. Which of the following is 1 point
not a pair of co-prime *
O (9,10)
O (31,72)
O (5,19)
O (17,51)
O (13,15)
0 (4,15)​

Answer 1

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.