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A remarkable multiplication (Posted on 2008-11-09) Difficulty: 3 of 5
In the multiplication below, each digit from 0-9 appears exactly 2 times. Decode the multiplication.
       * * *
       * * *
     -------
       * * *
     * * *
   * * *
   ---------
   * * * * *
Note1: No leading zeros in any number.
Note2: For a long time, mathematicians thought that this problem could only be solved using a computer. A few years ago, it was solved analytically, but its solution itīs far from being simple (and short). So, welcome computers.

See The Solution Submitted by pcbouhid    
Rating: 5.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Computer Solutioned bottemiller2008-11-10 22:14:44
SolutionSolution, with some thoughtsDej Mar2008-11-10 07:58:01
Solutioncomputer solutionCharlie2008-11-09 19:49:36
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