Palindrome Conjecture Tester

Enter a range of numbers to test.
You can test one number by setting both fields to the same value.

Range: to

Choose a maximum number of times to check whether a number forms a palindrome.
Lower iteration values can result in less accurate answers, but prevent numbers that don't form palindromes from freezing your computer.

Maximum Iterations:

Test

Note: If you get many numbers that don't result in palindromes, your iteration count is probably too low. However, due to the limitations of modern browsers, there is a maximum number that the browser can calculate without resulting in overflow, which restricts calculation of numbers that require many iterations to produce a palindrome. The only non-palindrome I've been able to calculate with this is 196, which is the lowest non-palindrome. Here is an accurate list of non-palindromes.