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B-Palindromes (Posted on 2004-02-25) Difficulty: 4 of 5
A b-palindrome is an integer that is a palindrome in base b.

Show how to find a number that is a b-palindrome, of at least three digits, for at least 1000 different values of b.

For example, 200 is not a 10-palindrome, but it is a 9-palindrome (242) and a 7-palindrome (404).

No Solution Yet Submitted by DJ    
Rating: 4.0000 (6 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Some Thoughts Better idea | Comment 9 of 11 |

Take factorials, and add one. Now test to see how many values in the range sqrt(x/2) to sqrt(x) that x mod (the value) equals 1.


  Posted by Justin on 2006-04-04 09:36:22
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