sarasaraparl2489 sarasaraparl2489

14-06-2018
Mathematics

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Give a counterexample to the proposition every positive integer that ends with a 3 is a prime

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LammettHash LammettHash

15-06-2018

Consider 33; it ends with 3, but [tex]11\mid33[/tex], so 33 is not prime.

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