Re: [math-fun] math-fun Digest, Vol 143, Issue 1
Can you give an example, I don't see how this is possible?
Every even perfect number is of the form a(n) + 1 for some n.
Here are the first few examples: 6 = a(1) + 1 28 = a(2) + 1 496 = a(4) + 1 8128 = a(6) + 1 33550336 = a(12) + 1 ... largest known perfect number = a(57885160) + 1 Indeed, a(p-1) + 1 is perfect if and only if 2^(p-1) - 1 is a Mersenne prime. Sincerely, Adam P. Goucher
Sent: Thursday, January 01, 2015 at 11:31 PM From: "Stuart Anderson" <stuart.errol.anderson@gmail.com> To: "math-fun@mailman.xmission.com" <math-fun@mailman.xmission.com> Subject: Re: [math-fun] math-fun Digest, Vol 143, Issue 1
Can you give an example, I don't see how this is possible?
Every even perfect number is of the form a(n) + 1 for some n.
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Adam P. Goucher -
Stuart Anderson