Which pair of numbers is relatively prime?

A.
10 and 25

B.
28 and 35

C.
14 and 49

D.
32 and 45

Question

Which pair of numbers is relatively prime?	
 
 A.
10 and 25
 
 B.
28 and 35
 
 C.
14 and 49
 
 D.
32 and 45

chosenmatt · Answer

wait all the numbers appear on a multiplication chart so im confuse

chosenmatt · Answer

@uri

chosenmatt · Answer

@inkyvoyd

chosenmatt · Answer

@Secret-Ninja

uri · Answer

10 and 25 are divisible by 5,so can't be relatively prime

uri · Answer

14 and 49 by 7,can't be relatively prime

chosenmatt · Answer

oh so what ever number isnt divisible by the same number is the answer

uri · Answer

28 and 35 by 7

uri · Answer

ye,
32 and 45 are not divisible by same number,so this would be the answer.

secret-ninja · Answer

In number theory, two integers a and b are said to be relatively prime, mutually prime, or co-prime (also spelled co-prime) if the only positive integer that evenly divides both of them is 1. That is, the only common positive factor of the two numbers is 1.