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Math Help - urgent pls help

  1. #1
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    urgent pls help

    can you please help?

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


    thx
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  2. #2
    MHF Contributor

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    Quote Originally Posted by marlen19861@hotmail.com View Post
    can you please help?

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


    thx
    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.

    I think you can do something similar for triangular numbers. I have no idea at all about perfect numbers.
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