The godgahlah-carta-tethracross is equal to E100#^^##100#^#100 using Extended Cascading-E Notation.[1] The term was coined by Sbiis Saibian.


The name of this number is based on the numbers "godgahlah" and "tethracross".

Approximations in other notations

Notation Approximation
BEAF \(\{100,101(1)2 (X \uparrow\uparrow\uparrow X) 2\}\)[2]
Bird's array notation ???
Fast-growing hierarchy \(f_{\zeta_0+{\omega^{\omega}}}(100)\)
Hardy hierarchy \(H_{\zeta_0 \omega^{\omega^{\omega}}}(100)\)
Slow-growing hierarchy ???


  1. Saibian, Sbiis. 4.3.7 Extended Cascading-E Numbers Part IOne to Infinity. Retrieved 2017-03-04.
  2. Using particular notation \(\{a,b (X \uparrow\uparrow X) 2\}\) for \(X \uparrow\uparrow b\ \&\ a\)
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