Question

Which pair of numbers is relatively prime? A. 49 and 770 B. 96 and 105 C. 101 and 145 D. 450 and 741

Answer 1

A. Try looking at the ones in the first number and the tens in the second. Nine can only be divided by 3, but 40 can’t, so it’s prime. And, 700 and 70 are both prime. Hope that helps!

Answer 2

Answer:

A) 49 and 770