The hecato-terinngathor (also called terinngathorfact) is equal to E100#^(#^####*#)100 using Cascading-E Notation.[1] The term was coined by Sbiis Saibian.

Approximations in other notations

Notation Approximation
BEAF \(\{100,100 (1,0,0,0,1) 2\}\)
Bird's array notation \(\{100,100 [2,1,1,1,2] 2\}\)
Fast-growing hierarchy \(f_{\omega^{\omega^{\omega^4 + 1}}}(100)\)
Hardy hierarchy \(f_{\omega^{\omega^{\omega^{\omega^4 + 1}}}}(100)\)
Slow-growing hierarchy \(g_{\theta(\Omega^{(\Omega^{\Omega^4}) \omega})}(100)\)

Sources

  1. Saibian, Sbiis. 4.3.5 Cascading-E NumbersOne to Infinity. Retrieved 2016-09-09.
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