Given that if n is a product of twin primes, say n = p(p+2), then

φ(n)σ(n)=(n+1)(n-3)

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- Nov 4th 2008, 11:46 AMtretHELP PLEASE.....
Given that if n is a product of twin primes, say n = p(p+2), then

φ(n)σ(n)=(n+1)(n-3) - Nov 4th 2008, 12:02 PMThePerfectHacker