Question

7 and 9 is a pair of co- prime numbers . True or False

Answer 1

There should be a minimum of two numbers to form a set of coprime numbers. Such numbers have only 1 as their highest common factor, for example, {4 and 7}, {5, 7, 9} are coprime numbers. Co-prime numbers need not be prime numbers always. Two composite numbers like 4 and 9 also form a pair of co-primes.

Factors: 1,2,7,14

Numbers: 14

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