Q. 355.0( 2 Votes )

Which of the following pairs is not coprime?
A. 8, 10

B. 11, 12

C. 1, 3

D. 31, 33

Answer :

A. Both 8 and 10 are even. Hence, 2 is also a common factor (other than 1) hence, not coprime.


B. 11, 12 only have 1 as a common factor. Hence they are coprime.


C. 1, 3 only have 1 as a common factor. Hence they are coprime.


D. 31, 33 only have 1 as a common factor. Hence they are cop rime.

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