Tethrapentaelgathor

The tethrapentaelgathor (formerly tethrapehaelgathor) is equal to 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 number "pentaelgathor".
== Approximations in other notations ==
Notation 	Approximation
BEAF 	\(\{100,100(X \uparrow\uparrow X*X^{X^5}) 2\}\)Using particular notation \(\{a,b (A) 2\} = A\ \&\ a\) with prime b.
Bird's array notation 	\(\{100,100 [1,1,1,1,1,2 \backslash 2] 2\}\)
Hyperfactorial array notation	\(100![1,[1,[1,1,6],1,1,2],[1],1,2]\)
Fast-growing hierarchy 	\(f_{\varepsilon_0^{\omega^{\omega^5}}}(100)\)
Hardy hierarchy 	\(H_{\varepsilon_0^{\varepsilon_0^{\omega^{\omega^5}}}}(100)\)
Slow-growing hierarchy 	\(g_{\vartheta(\varepsilon_{\Omega2}^{\Omega^{\Omega^4\omega}})}(100)\)
== Sources ==
== See also ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Extended Cascading-E numbers
Category:Epsilon level
Category:-thor
Category:Tethrafact series
Category:Tethrathoth — Monster-Giant