I have found these facts somewhere on internet.

1)The entire Fibonacci sequence is encoded in the number \(\frac{1}{89}\)

\( \frac{1}{89} = 0.01 + 0.001 + 0.0002 + 0.00003 + 0.000005 + 0.0000008 + 0.00000013 + 0.000000021 + 0.0000000034.. \)

2) Every 23rd of November(23/11) is celebrated as Fibonacci day because,the date and month combined in reverse way gives digits of fibonacci series sequence(1123).So next time don't forget to celebrate it.

3) There is a Wu's Squaring Trick, named after the famous Scott Wu, which is a technique used to quickly square numbers over 25 in your head. It uses the identity:- \[n^2 = (n - 25).100 + (n - 50)^2\]

4) Students who chew gumhave better math test scores than those who do not, a study found.

5) There are 177,147 ways to tie a tie, according to mathematicians

6) If you write out pi to two decimal places, backwards it spells “pie”.

7) Zero is the only number that can’t be represented in Roman numerals.

8) 10! seconds is exactly 6 weeks.

9) The easiest way to remember the value of Pi is by counting each world's letter in 'May I have a large container of coffee'.

I will post some more facts in this note.

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## Comments

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TopNewestI'm loving the 1st one a lot.In fact, all of these are very cool.Keep it up!

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Thanks @rohit udaiwal

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Cool Facts. Do you proof for the \(5th\) one?

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No, I don't have now.

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See this. The number of distinct tie knots was later extended to \(266682\) and this is the revised article.

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Thanks!

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Nice note. Can you please explain the 6th one?

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PIE = 3.14

now write 3.14 backward(mirror) then you will get something like PIE

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Thanku brother

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Since 1/89 is rational,therefore its decimal representation will eventually repeat.Therefore how can the entire infinite Fibonacci sequence be encoded in the decimal expansion of 1/89 @Dev Sharma ?

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Ah, good point, Abdur!

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Very good thnx for the note

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## 2 is also the anniversary of Dr who... :)

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