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18-yes, 17-maybe (Posted on 2010-08-06) Difficulty: 2 of 5
Prove that among any 18 consecutive 3-digit numbers there must be at least one which is divisible by the sum of its digits.

No Solution Yet Submitted by Ady TZIDON    
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  Subject Author Date
Hints/Tipsre: solutionAdy TZIDON2010-08-06 23:31:50
SolutionsolutionPraneeth2010-08-06 19:00:40
Some Thoughtsre: a beautiful computer proofAdy TZIDON2010-08-06 16:20:21
Solutioncomputer proofCharlie2010-08-06 13:59:53
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