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Palindromes and Books From “All the Math that's Fit to Print” by Keith Devlin, pages 180 and 182.[The Mathematical Association of America - MAA Online] Find a palindrome that when multiplied with 123456789 gives a number that ends with its reversal ....987654321. Answer : that number is 989010989 | |||
A000039 Prime Curios! Prime Puzzle Wikipedia 39 Le Nombre 39 Numberland 39 |
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