Today for something different, I'm going to share a few interesting mathematical facts just for the fun of it. Ones that could make life a bit more interesting for students.1. If there are 23 people in the room, there is a 50 percent chance that at least two people will share the same birthday.
2. If you shuffle a new deck of cards seven times, you have created maximum "randomness" of the deck.
3. The decimal equivalences of fractions with seven as the denominator produce the same six repeating digits in a slightly different order. They do not use 3, 6, or 9 in any of the decimal equivalents.
1/7 = .142857142857
2/7 = .285714285714
3/7 = .428571428571
4/7 = .571428571428
5/7 = .714285714257
6/7 = .857142857142
4. 26 is the only number between a perfect cube (3^3) and a perfect square (5^2)
5. Although you can fold paper more than 7 times, it usually requires either toilet paper or special heavy equipment that will press it flat, in general its hard to fold more than 6 times without extra help. If you could fold the paper as 104 times, the thickness would be 93 billion light years.
6. Hundred is said to come from the Norse word Hundrath which means 120 not the 100 we use it for.
7. if you multiply 111,111,111 by 111,111, 111 you get 12,345,678,987,654,321.
8. William Shakespeare used the word Mathematics in his wonderful play "The Taming of the Shrew".
9. Zero does not exist in Roman Numerals.
10. The addition (+) and subtraction (-) signs were used as early as 1489 AD.
11. A jiffy is actually 1/100th of a second.
12. 10! seconds is equal to exactly 6 weeks.
I was feeling a bit silly today so decided to look for some interesting mathematical facts to share with everyone. Have a good day and let me know what you think.
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