Very interesting, heard about it before. For anyone interested on today's state of knowledge, according to Wikipedia, there is still no known proof, but someon

Very interesting, heard about it before. For anyone interested on today's state of knowledge, according to Wikipedia, there is still no known proof, but someone has reached the 13 Million digit mark without finding a palindrome: "By May 1, 2006, VanLandingham had reached the 300 million digit mark (at a rate of one million digits every 5 to 7 days). A palindrome has yet to be found." http://en.wikipedia.org/wiki/Lychrel_number http://en.wikipedia.org/wiki/Lychrel_number