Are there only finite Fermat Primes?

Importance: High ✭✭✭
Author(s):
Keywords:
Recomm. for undergrads: no
Posted by: kurtulmehtap
on: August 21st, 2013

\begin{conjecture} A Fermat prime is a Fermat number \[ F_n = 2^{2^n } + 1 \] that is prime. The only known Fermat primes are F_0 =3,F_1=5,F_2=17,F_3 =257 ,F_4=65537 It is unknown if other fermat primes exist. % Enter your conjecture in LaTeX % You may change "conjecture" to "question" or "problem" if you prefer. \end{conjecture}

% You may use many features of TeX, such as % arbitrary math (between $...$ and $$...$$) % \begin{theorem}...\end{theorem} environment, also works for question, problem, conjecture, ... % % Our special features: % Links to wikipedia: \Def {mathematics} or \Def[coloring]{Graph_coloring} % General web links: \href [The On-Line Encyclopedia of Integer Sequences]{http://www.research.att.com/~njas/sequences/}

Bibliography



* indicates original appearance(s) of problem.