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UPSC CDS Math HCF and LCM of Numbers and Polynomials Questions

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Question : 14 of 31

Marks: +1, -0

There are two numbers p and such that their HCF is 1. Which of the following statements are correct ?
1. Both p and q may be prime.
2. One number may be prime and the other composite.
3. Both the numbers may be composite.
Select the correct answer using the code given below:

1 and 2 only
2 and 3 only
1 and 3 only
1, 2 and 3

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