Which pair of numbers is relatively prime?
a. 7 and 42
b. 16 and 39
c. 66 and 77
d. 90 and 891 user: are 30 and 138 relatively prime numbers

B.16 and 39

Step-by-step explanation:

A number is said to be a relative prime numbers if the only positive integer (factor) that divides both of them is 1.

16=2*2*2*2

39=3*13

It is noticed that there’s no common factor in the example.

The only common factor is one. This makes B correct.

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d

gimmee one of those gold crowns!

~coco