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How do you prove that 5a + 2 and 7a + 3 are relatively prime for every natural number a?

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  • How do you prove that 5a + 2 and 7a + 3 are relatively prime for every natural number a?


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Answer #1 | 07/02 2014 03:30
It is not a prime number.... because if a=2.... then the first is 12 and tyhe second is 15.... are not primes. OK!

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