Let and be twin primes larger than 3 where . Can one find a number such that:
and
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Since p and q are twin primes, and q > p , q = p + 2 . Considering p ≡ 1 ( m o d 3 ) would imply that q ≡ 0 ( m o d 3 ) or 3 ∣ p which is a contradiction since q is prime. Considering p ≡ 2 ( m o d 3 ) would imply that q ≡ 1 ( m o d 3 ) and thus is the only option for p and q to be twin primes.
Since p ≡ 2 ( m o d 3 ) and p ≡ 1 ( m o d 2 ) we can easily deduce from the chinese remainder theorem that p = 6 n + 5 , since q = p + 2 , q = 6 n + 7