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Schools Mathematics Grand Challenge

Sample Puzzles

The real puzzles will be available starting Monday 23rd January. Until then, here's a puzzle to think about.

A number is a palindrome if when you read the digits from left to right, you get the same as if you read from right to left. All palindromes with an even number of digits are divisible by some number other than 1. What is that number?


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Hamilton Institute - National University of Ireland Maynooth - Co. Kildare - Ireland Tel. + 353 (0) 17086100 - Fax. +353 (0) 17086269 - email