π, PI, is probably the most well known
mathematical symbol. Most people even know a few of its decimals.
Say "3.14" and many people will say "Isn't that PI?"
However, 3.14 is just the beginning.
From the top of my head, I can give you as much as
3.14159265358979, and tell you that the next digit is probably less
than 5. If you say "3.14159265358979", most people will reply with
a resounding "NERD!". And rightfully so. Knowing π to 14 decimal
places is a bit too much to escape the nerd category. Sadly, it is
also too little to be impressing.
The current Guinness-recognized record for remembered digits of
π is 67890 and is held by Lu Chao from China. When setting this
record, it took him a little over 24 hours to speak all the
digits.
When getting started in the π memorizing business, it can
perhaps be useful to start with the first 767 digits. Why, you ask.
Well, you see, the thing is that doing so will give you 6 digits
for free at the end if you just remember that they are all nines.
This is called the Feynman point because the physicist Richard
Feynman once joked about it during a lecture.
However, even learning all those 767 digits will not help you find
this cache.
The Chinese mathematician Zu Chongzhi would not have been able to
find the cache either, even though he, as early as around the year
480, found that the true value of π is somewhere between
3.1415926 and 3.1415927.
Today, the value of π is known to 5 trillion decimal places.
That's 5 million million or 5 000 000 000 000.
It's hard to get one's head around that number, but it's clear that
finding the cache shouldn't be a problem in this day and age.
Normally, you need fourteen digits in order to find a cache. This
one is no exception. What you need is this:
3762828
5206982
Good luck!
