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2 bases (Posted on 2017-07-21) Difficulty: 3 of 5
The palindromic decimal number N=abccba displays an interesting feature:
The value of abc in base 9 equals the value of cba in base 7.

What is N's prime factorization?

See The Solution Submitted by Ady TZIDON    
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  Subject Author Date
Solutioncomputer solution (spoiler)Charlie2017-07-21 10:47:40
SolutionSolutionJer2017-07-21 10:47:34
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