Coprime Numbers

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Definition Two numbers are said to be Coprimes when they have only 1 as a common factor. Following examples would further help you to understand Coprimes Example 1 = Are numbers 6 and 25 Coprime ? Answer = Two given numbers are 6 and 25 Factors of 6 = 1, 2, 3, 6 Factors of 25 = 1, 5, 25 On comparing the factors of numbers 6 and 25, you can see that both have only 1 as a common factor, Hence we can say that numbers 6 and 25 are Coprimes. Example 2 = Are numbers 12 and 21 Coprime ? Answer = Two given numbers are 12 and 21 Factors of 12 = 1, 2, 3, 4, 6, 12 Factors of 21 = 1, 3, 7, 21 On comparing the factors of numbers 12 and 21, you can see that both have 1 and 3 as common factors, Hence, we can say that numbers 12 and 21 are not Coprimes. Example 3 = Are numbers 27 and 16 Coprime ? Answer = Two given numbers are 27 and 16 Factors of 27 = 1, 3, 9, 27 Factors of 16 = 1, 2, 4, 16 On comparing the factors of numbers 27 and 16, you can see that both have 1 as a common factor, Hence we can say that numbers 27 and 16 are Coprimes.