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Endless palindrome

Usually, by reversing any number and adding it to the original one it is possible to get a palindromic number after a few steps.

E.g. 64+46=110

110+011=121, which is a palindromic number.It reads the same forwards or backwards.








This is a palindrome. the first number took just 2 steps and the second, 5 steps. but 196 is an exception as John Walker discovered on May 2, 1990.In spite of employing a computer programme to carry out this process of reversal and addition he had to abandon the effort after 2,415,836 steps that yielded a number with one million digits.Still there was no palindrome for 196

Note by Vishal S
2 years, 9 months ago

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There are many other palindrome like 592,790,394.

Himanshu Goel - 2 years, 7 months ago

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I think 592 is also an exception.

Himanshu Goel - 2 years, 9 months ago

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