Ecetonthrex

Ecetonthrex is equal to E303#1#1#2 = E303#1#E303, 
using Hyper-E notation. The term was coined by Sbiis Saibian. This number belongs to the greagol regiment.
== Approximations in other notations ==
Notation 	Approximation
Arrow notation 	\(100 \uparrow\uparrow\uparrow 10 \uparrow 303\)
Chained arrow notation 	\(100 \rightarrow 10^{303} \rightarrow 3 \)
Hyperfactorial array notation	\((168!)!2\)
BEAF & Bird's array notation 	\(\{100,\{10,303\},3\}\)
Fast-growing hierarchy 	\(f_4(f_2(996))\)
Hardy hierarchy 	\(H_{\omega^4+\omega^2}(996)\)
Slow-growing hierarchy 	\(g_{\zeta_{\omega^\omega}}(155)\)
== Sources ==
== See also ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Hyper-E numbers
Category:Up-arrow notation level
Category:Eceton series
Category:Greagol regiment