Tiannatru
Tiannatru Tiannatru
  • 15-02-2017
  • Mathematics
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Exit
Which pair of numbers is relatively prime?
A. 108 and 57
B. 21 and 183
C. 55 and 121
D. 60 and 151

Respuesta :

Аноним Аноним
  • 19-02-2017
its not A because 108 and 57 are both divisible by 3

if you write  the numbers in prime factor form you will see the correct optiuon

for example B:-

21 = 3* 7
183 = 3 * 61       3 is common to both factors so its not B
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