Pierre de Fermat

1601 - 1665

Photo of Pierre de Fermat

Icon of person Pierre de Fermat

Pierre de Fermat (French: [pjɛʁ də fɛʁma]; between 31 October and 6 December 1607 – 12 January 1665) was a French mathematician who is given credit for early developments that led to infinitesimal calculus, including his technique of adequality. In particular, he is recognized for his discovery of an original method of finding the greatest and the smallest ordinates of curved lines, which is analogous to that of differential calculus, then unknown, and his research into number theory. He made notable contributions to analytic geometry, probability, and optics. Read more on Wikipedia

Since 2007, the English Wikipedia page of Pierre de Fermat has received more than 1,342,472 page views. His biography is available in 96 different languages on Wikipedia. Pierre de Fermat is the 14th most popular mathematician (down from 13th in 2019), the 71st most popular biography from France (down from 53rd in 2019) and the 2nd most popular French Mathematician.

Pierre de Fermat is most famous for his work in number theory. He is also known for his work on the Fermat's Last Theorem, which states that no three positive integers a, b, and c can satisfy the equation an + bn = cn for any integer value of n greater than 2.

Memorability Metrics

  • 1.3M

    Page Views (PV)

  • 78.27

    Historical Popularity Index (HPI)

  • 96

    Languages Editions (L)

  • 12.69

    Effective Languages (L*)

  • 3.51

    Coefficient of Variation (CV)


Among mathematicians, Pierre de Fermat ranks 14 out of 1,004Before him are Omar Khayyam, Al-Biruni, Hypatia, Bernhard Riemann, Bertrand Russell, and Fibonacci. After him are Niels Henrik Abel, Pierre-Simon Laplace, David Hilbert, Srinivasa Ramanujan, Henri Poincaré, and Joseph Fourier.

Most Popular Mathematicians in Wikipedia

Go to all Rankings


Among people born in 1601, Pierre de Fermat ranks 2Before him is Louis XIII of France. After him are Anne of Austria, Baltasar Gracián, Jan Brueghel the Younger, Ernest I, Duke of Saxe-Gotha, John Eudes, Alonzo Cano, Tugay Bey, Charles Philip, Duke of Södermanland, Simon de Vlieger, and Anne Eleonore of Hesse-Darmstadt. Among people deceased in 1665, Pierre de Fermat ranks 1After him are Nicolas Poussin, Philip IV of Spain, Elisabetta Sirani, Archduchess Maria Anna of Austria, Stefan Czarniecki, César, Duke of Vendôme, Mary of Jesus of Ágreda, Sigismund Francis, Archduke of Austria, Catherine de Vivonne, marquise de Rambouillet, Charles II, Duke of Mantua and Montferrat, and Andreas Cellarius.

Others Born in 1601

Go to all Rankings

Others Deceased in 1665

Go to all Rankings

In France

Among people born in France, Pierre de Fermat ranks 71 out of 6,770Before him are Louis de Funès (1914), Michel Foucault (1926), François Rabelais (1494), Jean-Paul Belmondo (1933), Jean-François Champollion (1790), and Henri Bergson (1859). After him are Edgar Degas (1834), Charles X of France (1757), Maximilien Robespierre (1758), Jacques-Louis David (1748), William the Conqueror (1028), and Pierre-Auguste Renoir (1841).


Among mathematicians born in France, Pierre de Fermat ranks 2Before him are Blaise Pascal (1623). After him are Pierre-Simon Laplace (1749), Henri Poincaré (1854), Joseph Fourier (1768), Jean le Rond d'Alembert (1717), Évariste Galois (1811), François Viète (1540), Augustin-Louis Cauchy (1789), Pope Sylvester II (938), Sophie Germain (1776), and Marin Mersenne (1588).