# Math Help - urgent pls help

1. ## urgent pls help

Find all twin primes p, p+2 whose mid term p+1 is i) Triangular ii) Perfect square iii) perfect

thx

2. Originally Posted by marlen19861@hotmail.com
$n^2- 1= (n-1)(n+1)$ so there is no perfect square one more than a prime, so no twin primes whose mid term is a perfect square.