what is a co-prime number
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Answer:
Co-prime Numbers. Co-prime numbers are pairs of numbers that do not have any common factor other than 1. There should be a minimum of two numbers to form a set of co-prime numbers. Such numbers have only 1 as their highest common factor, for example, {4 and 7}, {5, 7, 9} are co-prime numbers.
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Answer:
In mathematics, two integers a and b are coprime, relatively prime or mutually prime if the only positive integer that is a divisor of both of them is 1.[1] Consequently, any prime number that divides a does not divide b, and vice versa. This is equivalent to their greatest common divisor (GCD) being 1.[2] One says also a is prime to b or a is coprime with b.
The numerator and denominator of a reduced fraction are coprime. The numbers 14 and 25 are coprime, despite the fact that neither considered individually is a prime number, since 1 is their only common divisor. On the other hand, 14 and 21 are not coprime, because they are both divisible by 7.
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