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The following cryptarithm utilizes the first 4 prime digits (2, 3, 5, & 7):
        * * *
       x  * *
      ---------
      * * * *
    * * * *
    -----------
    * * * * *
There is only one solution. [Mensa]

 

  Submitted: 1999-09-02 18:40:00;   Last Modified: 2008-01-30 11:28:00.



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