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The largest 3-digit prime whose absolute value of the differences between any two of its digits are also prime. Note that 947 is the sum of first three consecutive primes in the sequence of primes with this property, i.e., 163+257+461. [Loungrides]

 

  Submitted: 2010-11-21 12:32:44;   Last Modified: 2016-07-30 08:00:37.



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