The tetrugolhexa is equal to E100####100###6 in Extended Hyper-E Notation.[1] The term was coined by Sbiis Saibian.


The name of this number is based on the numbers "tetroogol" and "gugolhexa".

Approximations in other notations

Notation Approximation
BEAF \(\{100,101,99,5,1,2\}\)
Hyperfactorial array notation \(100![[1,5],1,3]\)
Fast-growing hierarchy \(f_{\omega^3+\omega 4+99}(100)\)
Hardy hierarchy \(H_{\omega^{\omega^3+\omega 4+99}}(100)\)
Slow-growing hierarchy \(g_{\varphi(1,0,4,98,0)}(100)\)


  1. Saibian, Sbiis. Extended Hyper-E Numbers. Retrieved 2017-01-30.
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