Question

91 and 72 .34 and 51 which one coprime no​

Answer 1

Pair 1 because they have no common factor

But the second one 34 and 51 have 17 as a common factor

Answer 2

Answer:

Step-by-step explanation:

91=7x13

72=2x2x2x3x3

34= 2x17

51=3x17

1. Here no common factors in 91 and 72 so 91,72 are co-prime

2 again no common factors in 91 and 34 so 91,34 are co-prime

3.no common factors in 91 and 91,51 so 91,51 are co-prime