Tethratrifact

Tethratrifact is equal to E100(#^^#)^#100(#^^#)^#100 in Extended Cascading-E Notation. The term was coined by Sbiis Saibian. This number belongs to the tethrathoth regiment.
== Etymology ==
The name of this number is based on Greek prefix "tri-" and the number "tethrafact".
== Approximations in other notations ==
Notation 	Approximation
BEAF 	\(\{100,100(X \uparrow\uparrow X*X) 3\}\)Using particular notation \(\{a,b (A) 3\}\) with prime b.
Bird's array notation 	\(\{100,100 [2 \backslash 2] 3\}\)
Hyperfactorial array notation	\(100![1,2,[1],1,2]\)
Fast-growing hierarchy 	\(f_{\varepsilon_0^\omega2}(100)\)
Hardy hierarchy 	\(H_{\varepsilon_0^{\varepsilon_0^\omega2}}(100)\)
== Sources ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Extended Cascading-E numbers
Category:Epsilon level
Category:-thoth
Category:Tethrafact series