[ January 4, 2000 ]
In this paragraph I am searching for the largest Square and Cube whose decimal expansion
contains no palindromic substrings except of course their single digits themselves.
|Square Root||Palfree Square|
|10104574 ( first above 107 ) ||102102415721476 ( length 15 ) |
|Cube Root||Palfree Cube|
|10069605 ( first above 107 ) ||1021027182906953620125 ( length 22 ) |
|( first above 107 ) ||10210219 ( length 8 ) |
All these examples our put in the table only as a starting point.
Your task is to find the largest possible palfree square, cube and/or prime.
My guess is that the above record palfree numbers will be approximately 45 digits long ...
but I could be wrong!
Good luck with this research topic and keep me posted!
Continued at WONplate 46...