Proved by a

Andrew Wiles, a

mathematician at

Princeton. The proof was announced on

Wednesday,

23 June 1993.

Fermat's Last Theorem asserts that if *n* is an integer larger than 2, then the equation *a*^{n} + *b*^{n} = *c*^{n} has no solution for which *a*, *b*, and *c* are integers larger than zero.

The theorem is due to Pierre de Fermat (1601-1665), a French judge living in Toulouse, who made the conjecture 350 years ago.