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The tethrarxigong is equal to E100#^^^#100,000 in Extended Cascading-E Notation.[1] The term was coined by Sbiis Saibian. This number is slightly smaller than pentacthulhugong.

Approximations[]

Notation Approximation
BEAF \(\{X,X,1,2\}\ \&\ 100000\) (weaker bound)

\(\{X,X,3\}\ \&\ 100000 \) (stronger bound)

Bird's array notation \(\{100,100000[1[1\neg3]2]2\}\)
Hyperfactorial array notation \(100000![1(1)2]\)
Fast-growing hierarchy (using this system

of fundamental sequences)

\(f_{\varphi(1,0,0)[100,000]}(100)\)
\(=f\)\(_{\Gamma_0}\)\(_{[100,000]}(100)\)
Hardy hierarchy \(H_{\Gamma_0[100,000]}(100)\)
Slow-growing hierarchy (with this system of fundamental sequences) \(g_{\psi_0(\Omega_2^{\Omega_2})[100,000]}(100)\)


Sources[]

  1. Saibian, Sbiis. 4.3.9 - Extended Cascading-E Numbers Part III. Retrieved 2017-01-13.
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