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Digits 1-9 (Posted on 2002-06-05) Difficulty: 3 of 5
Can you arrange the digits 1-9 in any order so that:
  • The number formed by the first two digits is divisible by 2.
  • The number formed by the first three digits is divisible by 3.
  • The number formed by the first four digits is divisible by 4
  • and so on up to nine digits...
  •   Submitted by Rhonda Wendel    
    Rating: 3.1429 (7 votes)
    Solution: (Hide)
    The answer is 381654729.

    To see the solution, refer to the excellent thoughts posted by our visiotrs, in particular TomM's step by step elimination guide.

    Comments: ( You must be logged in to post comments.)
      Subject Author Date
    SolutionAlternative MethodologyK Sengupta2007-06-23 05:53:34
    SolutionProblem ResolutionK Sengupta2007-06-19 05:59:58
    puzzle solutionK Sengupta2007-03-08 11:51:18
    Yes or No QuestionDrew2003-10-09 00:03:57
    re(2): Eliminate more; Test less(Part 3)levik2002-06-12 06:40:02
    re: Eliminate more; Test less(Part 3)Nick Reed2002-06-09 23:14:21
    Hints/TipsEliminate more; Test less(Part 3)TomM2002-06-07 14:55:07
    Hints/TipsEliminate more; Test less(Part 2)TomM2002-06-07 14:54:18
    Hints/TipsEliminate more; Test less(Part 1)TomM2002-06-07 14:53:20
    re: First thoughts (again)Nick Reed2002-06-06 06:00:55
    Just For KicksTomM2002-06-06 05:43:43
    Some Thoughtsre: First thoughtsNick Reed2002-06-06 05:43:05
    Some ThoughtsFirst thoughtsTomM2002-06-06 05:35:54
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