The myria-exaxis (also called gigoltoll) is equal to E1#1#1#1#10,000 using Hyper-E notation.[1] The term was coined by Sbiis Saibian.

Aarex Tiaokhiao calls this number gihol.[2]

Approximations in other notations

Notation Approximation
Up-arrow notation \(10 \uparrow\uparrow\uparrow\uparrow\uparrow 10000\) (exact)
Chained arrow notation \(10 \rightarrow 10000 \rightarrow 5 \) (exact)
Hyper-E notation \(E1\#1\#1\#1\#10000\) (exact)
Hyperfactorial array notation \(10002!4\)
BEAF \(\{10,10000,5\}\)
Fast-growing hierarchy \(f_6(10000)\)
Hardy hierarchy \(H_{\omega^6}(10000)\)
Slow-growing hierarchy \(g_{\varphi(4,0)}(10000)\)


  1. Sbiis Saibian, Hyper-E Numbers - Large Numbers
  2. Part 1 (LAN) - Aarex Googology
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