In mathematics, a conjecture is a mathematical statement which has been proposed as a true statement, but which no one has been able to prove or disprove.
Famous conjectures include:
- The Riemann Hypothesis
- P ≠ NP
- The Poincaré Conjecture
- Goldbach's Conjecture
- The Twin Prime Conjecture
- There are no odd perfect numbers
Until its proof in 1995, the most famous of all conjectures was Fermat's Last Theorem.