Which pair of numbers is co-prime?

Type: MCQ • Marks: 1

A. 14 and 21

B. 6 and 9

C. 8 and 15

D. 12 and 18

Explanation

Factors of 8 (1,2,4,8) and 15 (1,3,5,15) share only 1 as a common factor.

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Class 7th Ganita Prakash 2

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