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November 5th, 2008, 08:33 AM   #1
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twin primes

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

i've done (i) and (ii) put I have no ideas for (iii)
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November 5th, 2008, 01:35 PM   #2
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Re: twnin primes

Do you know what form even perfect numbers take?
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