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Thread: Prime Numbers

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  1. Sep 5th, 2009, 09:54 AM #10
    TriLogic
    TriLogic is offline
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    Re: Prime Numbers

    Quote Originally Posted by storm5510 View Post
    Is there a simple algorithm which can determine if a number is prime?
    If you are attempting to discover new primes then I strongly suggest you narrow the field by just focusing on ODD Numbers with DIGITAL ROOTS of 1,4,7,2,5,8. These numbers will be either primes or products of primes > 3 multiplied by primes > 3.

    All other numbers:

    EVEN numbers with digital roots 1,4,7,2,5,8
    ODD & EVEN numbers with digital roots 3,6,9

    will be multiples of 2 or 3 or multiples of both 2 & 3.
    Last edited by TriLogic; Sep 5th, 2009 at 09:59 AM.
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