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Cube Difference Deduction (Posted on 2014-12-12) Difficulty: 3 of 5
Consider the seven positive integers: 123, 1234, 12345, 123456, 1234567, 12345678 and 123456789.

How many of these seven numbers are expressible as the difference of cubes of two positive integers?

No Solution Yet Submitted by K Sengupta    
Rating: 5.0000 (1 votes)

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  Subject Author Date
SolutionRule of cubesMath Man2014-12-20 20:39:08
Solutioncomputer solutionCharlie2014-12-12 17:48:48
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