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Duplicate Digit Determination II (Posted on 2010-11-19) Difficulty: 3 of 5
If the tetradecimal (base 14) representation of 2P and 7P start with the same (non-zero) digit for a positive integer P, what is that digit? Can you prove that it must be so?

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
possible solutionbroll2010-11-20 11:21:37
re: An analogous case.Ady TZIDON2010-11-20 05:28:44
An analogous case.Jer2010-11-19 17:26:33
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