On IBM’s millennial puzzle
We give lower and upper bounds on the number ofn-digit numbers that are multiples of 2n and which have no zeros in their decimal representation.
KeywordsInduction Hypothesis Quadratic Equation Empty Space Digit Number Classroom Situation
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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© Indian Academy of Sciences 2000