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17763*2^66066-1 is prime. Note that 66066 is a palindromic triangular number, and that 1^2+7^2+7^2+6^2+3^2 = 6^2+6^2+0^2+6^2+6^2 = 144 = 12^2. [Earls]

 

  Submitted: 2004-09-10 13:47:38;   Last Modified: 2008-01-30 11:28:00.



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