Heptalogue

The heptalogue is equal to E1#7 = EEEEEEE1 = 10^10^10^10^10^10^10, using Hyper-E Notation.Sbiis Saibian's Ultimate Large Numbers List The term was coined by Sbiis Saibian.
== Etymology ==
The name of this number is based on Greek prefix "hepta-" and the word "log" from "logarithm".
== -illion names ==
Using Aarex Tiaokhiao's -illion generalization of Nirvana's -illions, this number is approximately:Intermediate -illions: Continued (Retrieved 19 April, 2022)
== Approximations in other notations ==
Notation 	Approximation
Scientific notation 	\(10^{10^{10^{10^{10^{10^{10}}}}}}\) (exact value)
Up-arrow notation 	\(10 \uparrow\uparrow 7\) (exact value)
Chained arrow notation 	\(10 \rightarrow 7 \rightarrow 2\) (exact value)
BEAF 	\(\{10,7,2\}\) (exact value)
Hyperfactorial Array Notation	\((((((13!)!)!)!)!)!\)
Fast-growing hierarchy 	\(f^6_2(30)\)
Hardy hierarchy 	\(H_{(\omega^2) 6}(28)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^{\omega^{\omega^{\omega^{\omega^\omega}}}}}}(10)\) (exact value)
== Sources ==
== See also ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Hyper-E numbers
Category:3 entry linear
Category:Greek-based name
Category:Tetration level
Category:-logue
Category:Doogol Regiment