Mathematics Facts & TriviaAny 2-digit number multiplied by 11 is a 3-digit number where the middle digit is 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. Sciensational.comSubmitted by: Catrine Montano - Surigao, Philippines The value of zero was first used by the ancient Indian mathematician Aryabhata. Sciensational.comSubmitted 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. Sciensational.comSubmitted by: Vighneswar - India 9 × 9 + 7 = 88 98 × 9 + 6 = 888 987 × 9 + 5 = 8888 9876 × 9 + 4 = 88888 98765 × 9 + 3 = 888888 987654 × 9 + 2 = 8888888 ... (Multiplication & Succession.) Sciensational.comSubmitted by: Tyler - United States The implicit curve equation (x^{2}+y^{2}-1)^{3}-x^{2}y^{3}=0 produces the heart shape. Submitted by: Hyde - Toronto, Ontario, Canada The term Googol (10^{100}, 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. Submitted by: Adarsh - Guraon, India 17 689 = 133^{2} 177 6889 = 1333^{2} 1777 68889 = 13333^{2} 17777 688889 = 133333^{2} 177777 6888889 = 1333333^{2} ... Sciensational.comSubmitted by: Laxmana Perumal - Nagercoil, India
The Seven Unsolved Millennium Prize Math Problems are: 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 ... Sciensational.comSubmitted by: Matt - California, United States A Palindrome Number is a number that reads the same backwards and forward, e.g. 13431. Sciensational.comSubmitted 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?" 1 × 8 + 1 = 9 12 × 8 + 2 = 98 123 × 8 + 3 = 987 1234 × 8 + 4 = 9876 12345 × 8 + 5 = 98765 123456 × 8 + 6 = 987654 ... (Multiplication & Succession.) Sciensational.comSubmitted by: Moi, Canada. 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 Sciensational.comSubmitted by: Moi, Canada. 1089 multiplied by 9 gives an exact reverse: 9801. From 0 to 1000, the letter "A" only appears in 1000 ("one thousand"). Sciensational.comSubmitted 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. 1 × 9 + 2 = 11 12 × 9 + 3 = 111 123 × 9 + 4 = 1111 1234 × 9 + 5 = 11111 12345 × 9 + 6 = 111111 123456 × 9 + 7 = 1111111 ... (Multiplication & Succession.) Sciensational.comSubmitted by: Rob 40 when written "forty" is the only number with letters in alphabetical order, while "one" is the only one with letters in reverse order. Sciensational.comSubmitted by: Rob |