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Which pair of numbers is relatively prime? A. 12 and 25 B. 18 and 39 C. 9 and 24 D. 24 and 45
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4 votes
Which pair of numbers is relatively prime?

A.
12 and 25

B.
18 and 39

C.
9 and 24

D.
24 and 45

User Jordon Bedwell
by
7.7k points

2 Answers

6 votes
Relatively prime means that the only factor the numbers have in common is the number 1. The answer is A. 12 and 25 have no other factors in common other than 1.
User Haldagan
by
8.0k points
5 votes
A.12=3*4, 25=5*5
Each member of the other three pairs has a factor of three.
User Akshay Gore
by
8.4k points
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