\begin{definition}[Definition:Ferrier's Prime]
'''Ferrier's prime''' is the prime number:
:$\dfrac {2^{148} + 1} {17} = 20 \, 988 \, 936 \, 657 \, 440 \, 586 \,486 \, 151 \, 264 \, 256 \, 610 \, 222 \, 593 \, 863 \, 921$
{{NamedforDef|Aimé Ferrier|cat = Ferrier}}
\end{definition}