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whatisHepoftwo co-prme no. |
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Answer» Consider a set of two numbers, if they have no positive integer that can divide both, other than 1, the pair of numbers is co-prime.Ex 1: 21 and 2221 and 22: The factors of 21 are 1, 3, 7 and 21. The factors of 22 are 1, 2, 11 and 22. Here 21 and 22 have only one common factor that is 1.Hence their HCF is 1 and are co-prime.Ex 2: 21 and 2721 and 27: The factors of 21 are 1, 3, 7 and 21. The factors of 27 are 1, 2, 3, 9 and 27. Here 21 and 27 have two common factors they are 1 and 3. HCF is 3 and they are not co-prime. The answer is 1, cause they don't have any common factor other than 1. HCF of coprime numbers is 1 1 is the correct answer of the given question factors of 21 & 23; Factors 21=1,3,7,; 27=1,3,9; hcf=1,3 |
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