Have Fun with P.I. If You Are Bored

I have memorised the first 500 digits of p.i using a memory palace a few month ago.

Recently I was just having fun with PI and noticed a couple of things using simple maths.

It starts with 3. and then 1 and 4 and 1 and 5

3 . 1 4 1 5

So here is the simple math I used while having some fun.

For the first 4 digits I’ve used the digits as "+"

3 plus 1 is 4, 4 plus 1 is 5. = 31415

3+1 = 4
314

4 + 1 = 5
31415

Now I’ve added all the digits before the 5 to place it after the 5.
3+1+4+1 = 9

last digit was 5, so I placed 9 next to it.
Gives me - 314159

Next I’ve added all the 1s together 1+1 = 2
3141592

Next I timed last digit (2) with the first digit (3)
2x3 = 6

31415926

Next I used the last digit minus the second digit
6-1 = 5

314159265

Next, I used the last digit (5), timed with with the third digit (4) and added the next two digits.
5x4 = 20 +15 = 35

31415926535

Next I’ve added the last two digits together
3+5 = 8

314159265358

Last digit (8) added to the Fourth digit (1)
8+1 = 9

3141592653589

Next is the last digit (9) + Fifth digit (5) - Next digit (9) + Next digit (2)
9+5 = 14
14-9 = 5
5 + 2 = 7

31415926535897

The Sixth digit is 9, so I simply place it next to the last digit.

314159265358979

Next is the last digit (9) divided by the Seventh digit (2) timed by the next and added to the next digit.

9/2 = 4.5
4.5 * 6 = 27
27 + 5 = 32

31415926535897932


So far it’s 17 digits of pi.

This has taken away some boredom .
I’m need a strong a cup of coffee now :slight_smile:

In the UK, there is a program called “Countdown”
It’s where the participants get a bunch of numbers, and do some maths to find the target three digit number. So I started doing this with P.I to have some fun.

If you are bored and want to pass some time, why not add the next ones?

I’m not good at maths, but I like to see some crazy math tricks.

Here are the first 100 digits of p.i if you like to carry on with it.

3 . 1 4 1 5 9 2 6 5 3 5 8 9 7 9 3 2 3 8 4 6 2 6 4 3 3 8 3 2 7 9 5 0 2 8 8 4 1 9 7 1 6 9 3 9 9 3 7 5 1 0 5 8 2 0 9 7 4 9 4 4 5 9 2 3 0 7 8 1 6 4 0 6 2 8 6 2 0 8 9 9 8 6 2 8 0 3 4 8 2 5 3 4 2 1 1 7 0 6 7 9.

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nice work

I remember 80 numbers in 60 seconds and I haven’t tested them for long numbers with the new method.

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