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Zootzootplex is the exponential factorial of the googolplex, or \(\text{googolplex}^{(\text{googolplex}-1)^{(\text{googolplex}-2)^{.^{.^{.^{4^{3^{2^{1}}}}}}}}}\).[1] It was coined by Andrew Schilling at the age of four. In the hyperfactorial array notation zootzootplex can be expressed as \(\text{googolplex}!1\). It is less than and comparable to googolplexstack.

Approximations in other notations

Notation Approximation
Arrow notation \(10^{100}\uparrow\uparrow10^{100}\)
BEAF \(\{ \{10,100\},\{10,100\},2\}\)
Bird's array notation \(\{ \{10,100\},\{10,100\},2\}\)
Chained arrow notation \(10^{100}\rightarrow 10^{100}\rightarrow 2\)
Hyperfactorial array notation \(10^{100}!1\)

Sources

See also

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