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RE: [PrimeNumbers] To slove a problem

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  • Chris Caldwell
    ... Looks like homework! All numbers hav one of the three forms 3n, 3n+1 and 3n+2. First think why no factor of a number of the form 3n+2 has the form 3n.
    Message 1 of 2 , Aug 9, 2005
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      > [mailto:primenumbers@yahoogroups.com] On Behalf Of torgalsri
      > i have one problem reguarding to this
      > prime numbers.
      >
      > question : prove : every integer of the form 3n+2 has a
      > prime factor of the
      > same form( ie., 3n+2 ).
      >

      Looks like homework! All numbers hav one of the three
      forms 3n, 3n+1 and 3n+2. First think why no factor of
      a number of the form 3n+2 has the form 3n. Next think
      what you would get if every factor was 3n+1.

      CC
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