Petatetrofaxul

Petatetrofaxul is equal to teratetrofaxul!2 or (((((200!2)!2)!2)!2)!2)!2 in Hyperfactorial array notation. The term was coined by Lawrence Hollom.Lawrence Hollom's large number site
=== Etymology ===
The name of this number is based on SI prefix "peta-" and the number "tetrofaxul".
===Approximations in other notations===
Notation 	Approximation
Hyper-E notation 	\(\textrm{E}10\#10\#197\#6\)
Up-arrow notation 	\(10 \uparrow\uparrow\uparrow 10 \uparrow\uparrow\uparrow 10 \uparrow\uparrow\uparrow 10 \uparrow\uparrow\uparrow 10 \uparrow\uparrow\uparrow 10 \uparrow\uparrow\uparrow 198\)
Chained arrow notation	\(10 \rightarrow (10 \rightarrow (10 \rightarrow  (10 \rightarrow (10 \rightarrow (10 \rightarrow 198 \rightarrow 3) \rightarrow 3) \rightarrow 3) \rightarrow 3) \rightarrow 3)\rightarrow 3\)
BEAF 	\(\{10,\{10,\{10,\{10,\{10,\{10,198,3\},3\},3\},3\},3\},3\}\)
Fast-growing hierarchy	\(f_4(f_4(f_4(f_4(f_4(f_4(200)))))\)
Hardy hierarchy 	\(H_{\omega^46}(200)\)
Slow-growing hierarchy	\(g_{\zeta_{\zeta_{\zeta_{\zeta_{\zeta_{\zeta_{0}}}}}}}(200)\)
===Sources===
=== See also ===
Category:Numbers
Category:Numbers by Lawrence Hollom
Category:Factorial numbers
Category:Up-arrow notation level
Category:Powers of 200