Mathematic Fun - Part 1: The Perfect Numbers
- Gudjon Torfi Sigurdsson(Xelforp)Iceland
As I'm waiting for a phone call, I decided to make a geeklist that had some mathematical connection. After browsing a bit on BGG and Wikipedia I decided that this was as good a start as any.Recommend
The Perfect Numbers:Wikipedia wrote:In mathematics, a perfect number is defined as a positive integer which is the sum of its proper positive divisors, that is, the sum of the positive divisors excluding the number itself. Equivalently, a perfect number is a number that is half the sum of all of its positive divisors (including itself), or σ(n) = 2n.
The first perfect number is 6, because 1, 2, and 3 are its proper positive divisors, and 1 + 2 + 3 = 6. Equivalently, the number 6 is equal to half the sum of all its positive divisors: ( 1 + 2 + 3 + 6 ) / 2 = 6.
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