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| 1. |
Show that the numbers 231and 396 are not co primes |
| Answer» Let us find HCF of 396 and 231 using Euclid’s division algorithm{tex}\\begin{array}{l}396=231\\times1+165\\\\231=165\\times1+66\\\\165=66\\times2+33\\\\66=33\\times2+0\\\\So\\;HCF(396,231)=33\\\\\\end{array}{/tex}So 33 is common factor of 396 and 231and co-prime numbers have\xa0common factor of 1 only.∴ The 396 and 231 are not co-prime. | |