2267
This number is a prime.
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(2267, 2269) is the first pair of twin primes of form
(n*R(n)-1, n*R(n)+1), case n=36. Can you find the next one
such pair? [Loungrides]
Submitted: 2018-05-25 18:27:00; Last Modified: 2018-07-18 11:46:42.
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