Myria-octaxis (also called gagoltoll) is equal to E1#1#1#1#1#1#10000 using Hyper-E notation.[1] The term was coined by Sbiis Saibian.

Aarex Tiaokhiao calls this number gahol.[2]

Approximations in other notations

Notation Approximation
Up-arrow notation \(10 \uparrow\uparrow\uparrow\uparrow\uparrow\uparrow\uparrow 10000\) (exact)
Chained arrow notation \(10 \rightarrow 10000 \rightarrow 7 \) (exact)
Hyperfactorial array notation \(10002!6\)
BEAF \(\{10,10000,7\}\)
Fast-growing hierarchy \(f_8(10000)\)
Hardy hierarchy \(H_{\omega^8}(10000)\)
Slow-growing hierarchy \(g_{\varphi(6,0)}(10000)\)

Sources

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