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The smallest prime in a set of four consecutive multidigit primes, i.e., {191, 193, 197, 199}, whose sum of digits (i.e., 11, 13, 17, 19) is another set of four distinct primes. [Gupta]

 

  Submitted: 2005-05-18 08:24:59;   Last Modified: 2013-06-04 10:13:21.



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