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Science·2 min·Updated Mar 14, 2026

What is Fermat's Last Theorem?

Fermat's Last Theorem

Quick Answer

This theorem states that there are no three positive integers a, b, and c that can satisfy the equation a^n + b^n = c^n for any integer value of n greater than 2. It was proposed by Pierre de Fermat in 1637 and remained unproven for over 350 years until Andrew Wiles provided a proof in 1994.

Overview

Fermat's Last Theorem is a famous statement in mathematics that deals with the impossibility of certain equations. Specifically, it asserts that while you can find whole numbers that work for the equation a^2 + b^2 = c^2, no whole numbers exist for a^n + b^n = c^n when n is greater than 2. This means that if you take larger powers, you won't be able to find any set of whole numbers that satisfy the equation, which is a surprising and intriguing result in number theory. The theorem was first noted by Pierre de Fermat in the margins of a book, where he claimed to have a proof that was too large to fit in the margin. This sparked centuries of interest and attempts by mathematicians to prove or disprove the theorem. The challenge of proving Fermat's Last Theorem drew in many brilliant minds over the years, leading to the development of new mathematical ideas and techniques. The significance of Fermat's Last Theorem extends beyond just the statement itself; it highlights the complexities of mathematics and the nature of proofs. The eventual proof by Andrew Wiles not only resolved a long-standing mystery but also introduced new concepts that have influenced various fields of mathematics. For example, Wiles' work involved techniques from algebraic geometry and number theory, showing how interconnected different areas of mathematics can be.


Frequently Asked Questions

It means that for the equation a^n + b^n = c^n, there are no whole number solutions when n is greater than 2. This is a significant result in number theory.
The theorem was proved by Andrew Wiles in 1994, after many years of effort by mathematicians. His proof was complex and used advanced concepts in mathematics.
It is important because it resolved a long-standing question in mathematics and led to the development of new mathematical theories. It also illustrates how mathematical problems can connect different areas of study.