Enter a clue or pattern or both:
The Clue
Founder of modern theory of numbers (6 letter answer)
The Answer
FERMAT
Tags
Notes
The answer FERMAT is so rare that it appears less than once every 2500 puzzles.
Definition
FERMAT as a noun:
1. (Fermat, Pierre de Fermat) = French mathematician who founded number theory; contributed (with Pascal) to the theory of probability (1601-1665)