Greagolthrex

Greagolthrex is equal to E100#100#100#2 = E100#100#(E100#100#100) = E100#100#greagol, using Hyper-E notation. The term was coined by Sbiis Saibian. This number belongs to the greagol regiment.
== Approximations ==
Notation 	Approximation
Up-arrow notation 	\(10 \uparrow\uparrow\uparrow 10 \uparrow\uparrow\uparrow 101\)
Chained arrow notation 	\(10 \rightarrow (10 \rightarrow 101 \rightarrow 3) \rightarrow 3\)
Hyperfactorial array notation	\((103!2)!2\)
Fast-growing hierarchy 	\(f_4(f_4(100))\)
Hardy hierarchy 	\(H_{(\omega^4) 2}(100)\)
Slow-growing hierarchy 	\(g_{\zeta_{\zeta_0}}(100)\)
== Sources ==
== See also ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Hyper-E numbers
Category:Up-arrow notation level
Category:Googol series
Category:Greagol regiment