World!OfNumbers |
WON plate 90 | |
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[ First, I found a set of three
Harvey's re-discovery was found after about a 10 hour search on a Pentium III/400. 3 titanic palindromic primes (palprimes)
Second, it occurred to me that while there have been investigations of palprimes in arithmetic progression I knew of no work on consecutivepalprimes in arithmetic progression. I started an exhaustive search and rapidly found 3, 4, 5 consecutive palprimes in AP. 6 took longerbut the smallest such set finally appeared. It is shown below. Several other sets have also been found. So far, no 7-set has beenfound, and it may be that an exhaustive search for 7 may not be appropriate.6 consecutive palindromic primes (palprimes)
Current record [ May 10, 2001 ] see WONplate 99More on palindromic primes... | ||||||

A000090 Prime Curios! Prime Puzzle Wikipedia 90 Le Nombre 90 Numberland 90 |

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