1997
This number is a prime.
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1997: (1997, 2003) is the only non-titanic sexy pair of
primes of form 2*10^p-p and 2*10^p+p, where p is a prime
(p=3). [Loungrides]
Submitted: 2015-11-09 19:48:19; Last Modified: 2019-04-15 11:41:50.
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