Grand Petafaxul

Grand petafaxul is equal to ((...((200!)!)!...)!)!Lawrence Hollom's large numbers site (with petafaxul ()'s), or 200!200!6+1 using Nested Factorial Notation. The term was coined by Lawrence Hollom.
== Etymology ==
The name of this number is based on the word "grand" and the number "petafaxul".
== Approximations in other notations ==
Notation 	Approximation
Hyper-E notation 	\(\textrm E10\#(\textrm E377\#6)\)
Up-arrow notation 	\(10 \uparrow\uparrow (10 \uparrow 10 \uparrow 10 \uparrow 10 \uparrow 10 \uparrow 10 \uparrow 377)\)
Chained arrow notation	\(10 \rightarrow (10 \rightarrow (10 \rightarrow (10 \rightarrow (10 \rightarrow (10 \rightarrow (10 \rightarrow 377)))))) \rightarrow 2\)
BEAF 	\(\{10,\{10,\{10,\{10,\{10,\{10,\{10,377\}\}\}\}\}\},2\}\)
Fast-growing hierarchy	\(f_3(f^6_2(1\,242))\)
Hardy hierarchy 	\(H_{\omega^3+(\omega^2) 6}(200)\)
Slow-growing hierarchy	\(g_{\varepsilon_{\omega^{\omega^{\omega^{\omega^{\omega^{\omega^\omega}}}}}}}(200)\)
== Sources ==
== See also ==
Category:Numbers
Category:Numbers by Lawrence Hollom
Category:Orders of symmetric groups
Category:Up-arrow notation level
Category:Factorial numbers