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Which pair of these numbers is coprime?

A4, 12

B33, 35

C5, 9

D45, 9

Answer:

B. 33, 35

Read Explanation:

The correct answer is option 2, Factors of 33: 1, 3, 11, 33, Factors of 35: 1, 5, 7, 35, No common factors except 1, so 33 and 35 are coprime.


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