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Pretty Potent Power Pair(s) (Posted on 2008-10-22) Difficulty: 3 of 5
Determine all possible pair(s) (2A, 2B), where each of A and B is a nonnegative integer, such that 2B is obtained by deleting the first digit from the left in the base 10 representation of 2A. None of the base 10 representations of 2A and 2B can contain leading zeroes.

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

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  Subject Author Date
SolutionsolutionPaul2008-10-22 18:59:53
Solutioncomputer-assisted proofCharlie2008-10-22 11:44:45
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