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dhemmy Group Title

how do you test for primality in java. and if the input is not prime how do you output the product

  • one year ago
  • one year ago

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  1. MakaiMcClintock Group Title
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    Use the modulus (%) operator. If 0 the number is even, if not it is odd. Discard number if even (and not 0, depending on how you look at it), then for all odd numbers write a recursive method that breaks down the number into its factors

    • one year ago
  2. bwCA Group Title
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    http://bit.ly/14hhKHQ

    • one year ago
  3. oldrin.bataku Group Title
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    For primality there are many different sieves that allow one to find prime numbers up to a given number; you can just use trial division and see if any of these divide your given number.

    • one year ago
  4. oldrin.bataku Group Title
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    http://en.wikipedia.org/wiki/Primality_test#Naive_methods

    • one year ago
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