What is coprime? Give example of five pair of coprime. Are coprime always Prime? If no, illustration your answer by an example?
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Co-prime numbers : Numbers which have HCF(Highest Common Factor)/GCD(Greatest Common Divisor) as 1 are termed as co-primes. Example : 5 and 7 are co-prime and even 8 and 9 are also co-prime. So, it is not mandatory that co-prime numbers are always prime. But two prime numbers will always be co-prime.
Co-prime numbers : Numbers which have HCF(Highest Common Factor)/GCD(Greatest Common Divisor) as 1 are termed as co-primes. Example : 5 and 7 are co-prime and even 8 and 9 are also co-prime. So, it is not mandatory that co-prime numbers are always prime. But two prime numbers will always be co-prime.
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