Tethrahepton

The tethrahepton is equal to E100#^^#^#7 = E100#^^#######100 in Extended Cascading-E Notation. The term was coined by Sbiis Saibian.
==Etymology==
The name of this number is based on the number tethrathoth and the root "zetton" from "polyzetton". Polyzetton is the name for a 8-dimensional figure and 8-D figures are constructed from multiple 7-D figures (hence the "poly"), so a "zetton" can be considered a 7-dimensional figure.
== Approximations in other notations ==
Notation 	Approximation
BEAF 	\(X \uparrow^8 101\ \&\ 100\)
Bird's array notation 	\(\{100,8 [1 [2 \neg 2] 2] 2\}\)
Hyperfactorial array notation	\(100![1] w/10\)
Fast-growing hierarchy 	\(f_{\varphi(7,0)}(99)\)
Hardy hierarchy 	\(H_{\varphi(7,0)}(100)\)
Slow-growing hierarchy 	\(g_{\vartheta(\varphi(7,\Omega+1))}(100)\)
==Sources==
==See also==
* Tethrahepton regiment
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Extended Cascading-E numbers
Category:Binary phi level
Category:Tethracubor series
Category:Tethrahepton regiment