# 11

This number is a prime.

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If T(A,B) = (A-B^2)^2-B with B < A, then 11 is the smallest value of A such that [A, A+2], [B, B+2], and [T(A,B), T(A,B)+2] are all twin prime pairs (in this case, B=5). All twin primes will exhibit this property if it is allowed that B > A. [Opao]
Submitted: 2004-01-07 01:52:26; Last Modified: 2008-01-30 11:28:00.

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