# Fermat's last theorem/Related Articles  Main Article Discussion Related Articles  [?] Bibliography  [?] External Links  [?] Citable Version  [?] Video [?] A list of Citizendium articles, and planned articles, about Fermat's last theorem.
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## Subtopics

• Pythagorean theorem [r]: In a right triangle, the squared length of the side opposite the right angle is equal to the sum of the squared lengths of the two other sides. [e]

## Other related topics

• Arithmetica (book) [r]: Add brief definition or description
• Algebraic number [r]: A complex number that is a root of a polynomial with rational coefficients. [e]
• Diophantine equation [r]: Equation in which the unknowns are required to be integers. [e]
• Ernst Eduard Kummer [r]: (29 January 1810 - 14 May 1893) German mathematician who codified some of the relations between different hypergeometric series, proved Fermat's last theorem for a considerable class of prime exponents, and found the Kummer surface. [e]
• Goldbach's conjecture [r]: Unestablished conjecture that every even number except the number 2 is the sum of two primes. [e]
• Integer [r]: The positive natural numbers (1, 2, 3, …), their negatives (−1, −2, −3, ...) and the number zero. [e]
• Unique factorization [r]: Every positive integer can be expressed as a product of prime numbers in essentially only one way. [e]