Question
Download Solution PDFWhich of the given pairs form a co-prime numbers pair?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF
Concept:
Co-prime numbers are two or more numbers that have only 1 as their common factor.
Calculation:
For the pair (21 , 42), the common factors are 1, 3, 7, and 21.
For the pair (9 , 63), the common factors are 1, 3, and 9.
For the pair (36 , 15), the common factor is only 3.
For the pair (11 , 21), the common factor is only 1.
Therefore, the pair (11 , 21) is co-prime pairs.
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