Which pair of numbers is relatively prime?
a: 7 and 21
b: 4 and 15
c: 6 and 9 <...
Mathematics, 11.10.2019 12:00 Geo777
Which pair of numbers is relatively prime?
a: 7 and 21
b: 4 and 15
c: 6 and 9
d: 9 and 27
Answers: 3
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