Mathematics Facts & Trivia

The implicit curve equation (x²+y²-1)³-x²y³=0 produces the heart shape. Sciensational.comSubmitted by: Hyde - Toronto, Ontario, Canada

The term Googol (10¹⁰⁰, ie, 10 followed by 100 zeros) was invented by a 9-year old boy Milton Sirotta. Sciensational.comSubmitted by: Cynthia - San Francisco, California, United States

The Reuleaux Triangle is a shape of constant width other than a circle. Sciensational.comSubmitted by: Adarsh - Guraon, India

           17 689 = 1332
         177 6889 = 13332 
       1777 68889 = 133332
     17777 688889 = 1333332
   177777 6888889 = 13333332
                 ...

The Seven Unsolved Millennium Prize Math Problems are:
1. P versus NP problem
2. Hodge Conjecture
3. Poincaré conjecture (solved in 2002)
4. Riemann Hypothesis
5. Yang-Mills Existence and Mass Gap
6. Navier-Stokes Existence and Smoothness
7. Birch and Swinnerton-Dyer Conjecture Submitted by: Ravi - Mississauga, Ontario, Canada

The Fibonacci sequence are numbers where each following number is the sum of the previous two:

0 1 1 2 3 5 8 13 21 34 55 89 ...

A Palindrome Number is a number that reads the same backwards and forward, e.g. 13431. Submitted by: Yusuf - Victoria, Australia

A dollar can be made into small change in 293 ways. Sciensational.com

You can remember the value of Pi (3.1415926) by counting each word's letters in "May I have a large container of coffee?"

Multiplication and succession:

       1 × 8 + 1 = 9
      12 × 8 + 2 = 98
     123 × 8 + 3 = 987
            ...

142857 is a cyclic number, i.e., its digits are rotated around when multiplied by any number from 1 to 6. Like this:

     142857 × 1 =  142857 
     142857 × 5 = 7 14285
     142857 × 4 = 57 1428
     142857 × 6 = 857 142
     142857 × 2 = 2857 14
     142857 × 3 = 42857 1

1089 multiplied by 9 gives an exact reverse: 9801. Sciensational.com

From 0 to 1000, the letter "A" only appears in 1000 ("one thousand"). Submitted by: Ramil Argete

2 is called the "oddest" Even-Prime number. 2 is a unique Even-Prime because while all Evens are divisible by 2, any number apart from 2 that is divisible by 2, is not a Prime. Sciensational.com

       1 × 9 + 2 = 11
      12 × 9 + 3 = 111
     123 × 9 + 4 = 1111
            ...

40 when written "forty" is the only number with letters in alphabetical order, while "one" is the only one with letters in reverse order. Submitted by: Rob

    1 googol = 10100 
1 googolplex = 10googol = 1010100   

     111 111 111 × 111 111 111 
                 = 
        12345678 9 87654321

Pi (3.14159...) is a number that cannot be written as a fraction. Sciensational.comSubmitted by: Tiff - Witherbee, United States

The opposite sides of a dice cube always add up to seven. Sciensational.comSubmitted by: Ramesh - Pune, India