Petaexpofaxul

Petaexpofaxul is equal to teraexpofaxul!1 or (((((200!1)!1)!1)!1)!1)!1 in Hyperfactorial array notation. The term was coined by Lawrence Hollom.Lawrence Hollom's large numbers site
== Etymology ==
The name of this number is based on SI prefix "peta-" and the number "expofaxul".
== Approximations in other notations ==
Notation 	Approximation
Hyper-E notation 	\(\textrm E10\#197\#6\)
Up-arrow notation 	
\(10 \uparrow\uparrow (10 \uparrow\uparrow (10 \uparrow\uparrow (10 \uparrow\uparrow (10 \uparrow\uparrow (10 \uparrow\uparrow 198)))))\)
Chained arrow notation	\(10 \rightarrow (10 \rightarrow (10 \rightarrow (10 \rightarrow (10 \rightarrow 10 \rightarrow 198 \rightarrow 2)\rightarrow 2) \rightarrow 2)\rightarrow 2)\rightarrow 2) \rightarrow 2\)
BEAF 	\(\{10,\{10,\{10,\{10,\{10,\{10,198,2\},2\},2\},2\},2\},2\}\)
Fast-growing hierarchy	\(f^6_3(196)\)
Hardy hierarchy 	\(H_{(\omega^3)6}\)(200)
Slow-growing hierarchy	\(g_{\epsilon_{\epsilon_{\epsilon_{\epsilon_{\epsilon_{\epsilon_{0}}}}}}}(200)\)
== Sources ==
== See also ==
Category:Numbers
Category:Numbers by Lawrence Hollom
Category:Factorial numbers
Category:Powers of 200
Category:Up-arrow notation level