Octalogue

Octalogue is equal to E1#8 = EEEEEEEE1 = 10^10^10^10^10^10^10^10 = 10^^8, using Hyper-E notation and up-arrow notation, respectively.Sbiis Saibian's Ultimate Large Numbers List The term was coined by Sbiis Saibian.
Andre Joyce has given an alternate name megistron, which is confusingly also an incorrect spelling of megiston.
=== Etymology ===
The name of this number is based on Greek prefix "octa-" and the word "logarithm".
=== Approximations in other notations ===
Notation 	Approximation
Scientific notation 	\(10^{10^{10^{10^{10^{10^{10^{10}}}}}}}\) (exact value)
Up-arrow notation 	\(10 \uparrow\uparrow 8\) (exact value)
Chained arrow notation 	\(10 \rightarrow 8 \rightarrow 2\) (exact value)
BEAF 	\(\{10,8,2\}\) (exact value)
Hyperfactorial Array Notation	\((((((((13!0)!0)!0)!0)!0)!0)!0\)
Fast-growing hierarchy 	\(f_2^{7}(30)\)
Hardy hierarchy 	\(H_{(\omega^2) 7}(28)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^{\omega^{\omega^{\omega^{\omega^{\omega^\omega}}}}}}}(10)\) (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
ja:オクタログ