# 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.

E.g.

79+97=176

176+671=847

847+748=1595

1595+5951=7546

7546+6457=14003

14003+30041=44044

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
3 years, 8 months ago

MarkdownAppears as
*italics* or _italics_ italics
**bold** or __bold__ bold
- bulleted- list
• bulleted
• list
1. numbered2. list
1. numbered
2. list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1paragraph 2

paragraph 1

paragraph 2

[example link](https://brilliant.org)example link
> This is a quote
This is a quote
    # I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
# I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
MathAppears as
Remember to wrap math in $$...$$ or $...$ to ensure proper formatting.
2 \times 3 $$2 \times 3$$
2^{34} $$2^{34}$$
a_{i-1} $$a_{i-1}$$
\frac{2}{3} $$\frac{2}{3}$$
\sqrt{2} $$\sqrt{2}$$
\sum_{i=1}^3 $$\sum_{i=1}^3$$
\sin \theta $$\sin \theta$$
\boxed{123} $$\boxed{123}$$

Sort by:

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

- 3 years, 6 months ago

I think 592 is also an exception.

- 3 years, 8 months ago