Alternative ways of finding palindromic numbers

  • Thread starter JT73
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  • #1
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^As the title says, I was curious if there are any alternative ways of finding palindromic numbers instead of using the reversal/add method?

Thanks
 

Answers and Replies

  • #2
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Huh, do you mean "how can they crop up in maths"? Obviously it's easy to "find" any palindromic number- they will correspond to some number x where you stick x next to its reversed self or where you sit x next to its reversed self without the first digit.

e.g. 1524 --> 15244251
or 1524 -->1524251

Any palindromic number will be of this form.
 
  • #3
49
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I've seen the process for finding a palindromic number which is the reversal/add way. For example, 186 + 681 = 867+768= 1635. + 5361 = 6996 So 186 gets palindromic at 6996 after 3 steps.

People have created programs that do these reversal/add techniques to numbers and then show how many steps it took to get palindromic. http://mathforum.org/library/drmath/view/51508.html


However, a few numbers such at 196 even after 2 million steps has still not become palindromic. Is there any alternative ways of finding palindromic numbers by usuing a different process instead of the reversal/add?
 
  • #4
49
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...bueller?...bueller?
 

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