Mathematics Facts & Trivia

Mathematics Facts & Trivia

A 3-digit result of any number multiplied by 11 has its middle digit the sum of other two, like: 21 × 11 = 231 (2+1=3) 13 × 11 = 143 (1+3=4) 44 × 11 = 484 (4+4=8) ... etc. Submitted by: Catrine Montano - Surigao, Philippines

The value of zero was first used by the ancient Indian mathematician Aryabhata. Submitted by: Sundara Moorthy - Tiruppur, Tamil Nadu, India

The sum of the digits of a number which is a multiple of 9 is always 9, ie, 45 : 4+5 = 9 1980 : 1+9+8+0=18 : 1+8 = 9 214164 : 2+1+4+1+6+4=18 : 1+8 = 9 etc. Submitted by: Vighneswar India

9 × 9 + 7 = 88 98 × 9 + 6 = 888 987 × 9 + 5 = 8888 9876 × 9 + 4 = 88888 98765 × 9 + 3 = 888888 ... (Multiplication & Succession.) Submitted by: Tyler - United States

The implicit curve equation (x2+y2-1)3-x2y3=0 produces the heart shape. Submitted 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. Submitted by: Cynthia - San Francisco, California, United States

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

17 689 = 1332 177 6889 = 13332 1777 68889 = 133332 17777 688889 = 1333332 ... Submitted by: Laxmana Perumal - Nagercoil, India

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 ... Submitted by: Matt - California, United States

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

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