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Repunit Rigor (Posted on 2011-10-25) Difficulty: 4 of 5
Can any base ten repunit, other than 1, be a perfect cube?

If so, give an example. Otherwise prove that no base ten repunit (other than 1) can be a perfect cube.

No Solution Yet Submitted by K Sengupta    
Rating: 3.0000 (2 votes)

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  Subject Author Date
Possible Solutionbroll2011-10-26 00:08:15
End with a repunitGamer2011-10-25 16:01:09
re: Wow... Is this really a D4? (spoiler--based on Google search)Gamer2011-10-25 15:53:42
Some ThoughtsWow... Is this really a D4? (spoiler--based on Google search)Charlie2011-10-25 12:38:22
Some Thoughtsfactorizations, in case they helpCharlie2011-10-25 11:59:02
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