Perfect article about "Perfect Day"

I saw an awesomely written article http://blogs.scientificamerican.com/roots-of-unity/49-ways-to-celebrate-the-most-perfect-day-of-the-year/.

So 6/28 is also known as Tau day... for those who write month first and prefer to use and write manifesto with τ = 2π and not π... So their formula is C = πτ. No, I am not a Tau enthusiast. π is around for so long let it be, ok?

Now, 6 and 28 are both perfect numbers. Their factors add up to it. The factors of 6 is 1,2,3. add them up ah you get 6. Mathematicians like "neat" stuff like that and assign names and come up with all sorts of properties. And they entertain and challenge each other like "is there infinitely many perfect numbers.", "how to find one", etc. Well, 28 is another one (uh hem, verify it is perfect by sum the factors of 28 up... leave to reader).

The article listed out a few more neato perfect number facts and about prime numbers (wish you can click on it). Such interesting refresher of the number theory course I took a long time ago.

Stuff with more intellectual matter ought to be passed around, go viral, with everyone standing up, clap their hands and say Euclid and Euler are such great genius.

The only idiot things that go viral these days are SIMPLE so called math problems that stumped mathematical incapable people.

Look here is this problem again: http://hellogiggles.com/math-problem-algebra/, and DUDE, what's the algebra part?? This is ELEMENTARY SCHOOL ARITHMETIC.