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Abstract algebra

  1. Sep 14, 2007 #1
    1. The problem statement, all variables and given/known data

    prove that the set of all rational numbers of the form 3m6n, where m and n are integers, is a group under multiplication
  2. jcsd
  3. Sep 14, 2007 #2


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    Welcome to PF benny56.
    What are the properties of a group? Can you show us some work?
  4. Sep 14, 2007 #3
    You only have to show that 4 properties hold for the 3m6n elements under multiplication. What are those 4 properties?
  5. Sep 14, 2007 #4
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