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Googology Wiki

The ebdomintolus is equal to E100#70100 in Extended Hyper-E Notation.[1] It is also equal to E100#^#70 in Cascading-E notation. The term was coined by Sbiis Saibian.

Approximations in other notations

Notation Approximation
BEAF \(\{100,71 (1) 2\}\)
Bird's array notation \(\{100,71 [2] 2\}\)
Hyperfactorial array notation \(100![[1,100],98,68]\)
X-Sequence Hyper-Exponential Notation \(100\{X^X\}69\)
Fast-growing hierarchy \(f_{\omega^{69}}(100)\)
Hardy hierarchy \(H_{\omega^{\omega^{69}}}(100)\)
Slow-growing hierarchy \(g_{\theta(\Omega^{68} \omega)}(100)\)


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