Salo Finkelstein
Salo Finkelstein (born 1896 or 1897, date of death unknown) was a mental calculator, ranked eighth in the "100 Greatest Mental Calculators". He was born in Łódź (then within the Russian Empire, now Po
Mental calculator
Human calculator is a term to describe a person with a prodigious ability in some area of mental calculation (such as adding, subtracting, multiplying or dividing large numbers). The world's best ment
Willem Klein
Willem Klein (4 December 1912 – 1 August 1986), also known as Wim Klein or under his stage names Pascal and Willy Wortel, was a Dutch mathematician of Jewish ancestry, famous for being able to carry o
Carl Friedrich Gauss
Johann Carl Friedrich Gauss (/ɡaʊs/; German: Gauß [kaʁl ˈfʁiːdʁɪç ˈɡaʊs]; Latin: Carolus Fridericus Gauss; 30 April 1777 – 23 February 1855) was a German mathematician and physicist who made significa
George Parker Bidder
George Parker Bidder (13 June 1806 – 20 September 1878) was an English engineer and calculating prodigy.
William Rowan Hamilton
Sir William Rowan Hamilton LL.D, DCL, MRIA, FRAS (3/4 August 1805 – 2 September 1865) was an Irish mathematician, astronomer, and physicist. He was the Andrews Professor of Astronomy at Trinity Colleg
Jedediah Buxton
Jedediah Buxton (1707–1772) was a noted English mental calculator, born at Elmton, near Creswell, in Derbyshire.
John von Neumann
John von Neumann (/vɒn ˈnɔɪmən/; Hungarian: Neumann János Lajos, pronounced [ˈnɒjmɒn ˈjaːnoʃ ˈlɒjoʃ]; December 28, 1903 – February 8, 1957) was a Hungarian-American mathematician, physicist, computer
Thomas Fuller (mental calculator)
Thomas Fuller (1710 – December 1790), also known as "Negro Tom" and the "Virginia Calculator", was an enslaved African renowned for his mathematical abilities.
Willis Dysart
Willis Nelson Dysart (March 15, 1923 in Omega, Georgia - November 8, 2011) was an American mental calculator. His talent for arithmetic emerged at the age of three after his mother taught him to count
Mental Calculation World Cup
The Mental Calculation World Cup (German: Weltmeisterschaften im Kopfrechnen, or World Championship in Mental Calculation) is an international competition for mental calculators, held every two years
Hans Eberstark
Hans Eberstark was an Austrian linguist and translator, known as a mental calculator, multilinguist and interpreter. He was born January 27, 1929 in Vienna and died on December 19, 2001
Stephen Hawking
Stephen William Hawking CH CBE FRS FRSA (8 January 1942 – 14 March 2018) was an English theoretical physicist, cosmologist, and author who, at the time of his death, was director of research at the Ce
Nikola Tesla
Nikola Tesla (/ˈtɛslə/ TESS-lə; Serbian Cyrillic: Никола Тесла, pronounced [nǐkola têsla]; 10 July [O.S. 28 June] 1856 – 7 January 1943) was a Serbian-American inventor, electrical engineer, mechanica
Shakuntala Devi
Shakuntala Devi (4 November 1929 – 21 April 2013) was an Indian mental calculator and writer, popularly known as the "Human Computer". Her talent earned her a place in the 1982 edition of The Guinness
Daniel McCartney
Daniel McCartney (September 10, 1817 – November 15, 1887) was an American who had (what is now known as) Highly Superior Autobiographical Memory (HSAM). McCartney was born in Westmoreland County, Penn
Srinivasa Ramanujan
Srinivasa Ramanujan FRS (/ˈsriːnɪvɑːsə rɑːˈmɑːnʊdʒən/; born Srinivasa Ramanujan Aiyangar, IPA: [sriːniʋaːsa ɾaːmaːnud͡ʑan ajːaŋgar]; 22 December 1887 – 26 April 1920) was an Indian mathematician. Thou
Zerah Colburn (mental calculator)
Zerah Colburn (September 1, 1804 – March 2, 1839) was an American child prodigy of the 19th century who gained fame as a mental calculator.
Truman Henry Safford
Truman Henry Safford (6 January 1836 – 13 June 1901) was an American calculating prodigy. In later life he was an observatory director.
Arthur F. Griffith
Arthur Frederick Griffith (30 July 1880 – 25 December 1911) was a calculating prodigy born July 30, 1880, in Milford, Kosciusko County, Indiana. He could count to 40,000 by age five. An illness at age
Zacharias Dase
Johann Martin Zacharias Dase (June 23, 1824, Hamburg – September 11, 1861, Hamburg) was a German mental calculator. He attended schools in Hamburg from a very early age, but later admitted that his in
Jakow Trachtenberg
Jakow Trachtenberg (17 June 1888 – 1953) was a mathematician who developed the mental calculation techniques called the Trachtenberg system. He was born in Odessa, in the Russian Empire (today Ukraine
Paul Erdős
Paul Erdős (Hungarian: Erdős Pál [ˈɛrdøːʃ ˈpaːl]; 26 March 1913 – 20 September 1996) was a Hungarian mathematician. He was one of the most prolific mathematicians and producers of mathematical conject
Leonhard Euler
Leonhard Euler (/ˈɔɪlər/ OY-lər, German: [ˈɔʏlɐ]; 15 April 1707 – 18 September 1783) was a Swiss mathematician, physicist, astronomer, geographer, logician and engineer who founded the studies of grap
Jacques Inaudi
Giacomo Inaudi (13 October 1867 – 10 November 1950), also known as Jacques Inaudi in France, was an Italian calculating prodigy. He was born in Roccabruna, Piedmont, Italy. As a child he was a shepher
Alexander Aitken
Alexander Craig "Alec" Aitken FRS FRSE FRSL FRSNZ (1 April 1895 – 3 November 1967) was one of New Zealand's most eminent mathematicians. In a 1935 paper he introduced the concept of generalized least