Tethrato-tethrafact

Tethrato-tethrafact is equal to E100#^^(#^^#)^#100 using Extended Cascading-E Notation.Sbiis Saibian, Extended Cascading-E Numbers - Large Numbers Retrieved 2021-08-03. The term was coined by Sbiis Saibian. This number belongs to the tethratope regiment.
== Approximations in other notations ==
Notation 	Approximation
Bird's array notation 	\(\{100,101 [1 [2 [1 \backslash 2] 2 \neg 2] 2] 2\}\)
Fast-growing hierarchy	\(f_{\varphi(\omega^{\epsilon_0+1},0)}(99)\)
Hardy hierarchy 	\(H_{\varphi(\omega^{\epsilon_0+1},0)}(100)\)
== Sources ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Binary phi level
Category:Extended Cascading-E numbers
Category:Tethratope series