About: Édouard Lucas

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Lucas was educated at the École Normale Supérieure. He worked in the Paris observatory and later became a professor of mathematics in Paris. In the meantime he served in the army. Lucas posed a challenge to prove that the only solution of the Diophantine equation: with N > 1 is when N=24 and M=70. It was not until 1918 that a proof (using hyperelliptic functions) was found for this remarkable fact, which has relevance to the bosonic string theory in 26-dimensions [1]. He worked on the development of the umbral calculus.

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rdfs:label	Édouard Lucas
rdfs:comment	Lucas was educated at the École Normale Supérieure. He worked in the Paris observatory and later became a professor of mathematics in Paris. In the meantime he served in the army. Lucas posed a challenge to prove that the only solution of the Diophantine equation: with N > 1 is when N=24 and M=70. It was not until 1918 that a proof (using hyperelliptic functions) was found for this remarkable fact, which has relevance to the bosonic string theory in 26-dimensions [1]. He worked on the development of the umbral calculus.
sameAs	dbr:Édouard_Lucas
dcterms:subject	Inventors
abstract	Lucas was educated at the École Normale Supérieure. He worked in the Paris observatory and later became a professor of mathematics in Paris. In the meantime he served in the army. Lucas posed a challenge to prove that the only solution of the Diophantine equation: with N > 1 is when N=24 and M=70. It was not until 1918 that a proof (using hyperelliptic functions) was found for this remarkable fact, which has relevance to the bosonic string theory in 26-dimensions [1]. He devised methods for testing the primality of numbers. In 1857, at age 15, Lucas began testing the primality of 2127-1 by hand, using Lucas Sequences. In 1876, after 19 years of testing [2], he finally proved that 2127−1 was prime; this would remain the largest known Mersenne prime for three-quarters of a century. This may stand forever as the largest prime number proven by hand. Later Derrick Henry Lehmer refined Lucas' primality tests and obtained the Lucas-Lehmer test for Mersenne numbers. He worked on the development of the umbral calculus. Lucas was also interested in recreational mathematics. He discovered an elegant binary solution to the Baguenaudier puzzle. He also more notably invented the Tower of Hanoi puzzle in 1883, which he marketed under the nickname N. Claus de Siam, an anagram of Lucas d'Amiens. He also invented Dots-and-Boxes in 1889 (he called the game La Pipopipette) and probably Tchuka Ruma. Lucas died in unusual circumstances. At the banquet of the annual congress of the Association française pour l'avancement des sciences a waiter dropped some crockery and a piece of broken plate cut Lucas on the cheek. He died a few days later of a severe skin inflammation probably caused by septicemia. Lucas was only 49 years old when he died.

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