The nucleabixul is equal to 200![[[200200]200]], using Hyperfactorial array notation.[1] The term was coined by Lawrence Hollom.

The nucleabixul is comparable to SCG (200), using subcubic graph function. It means that it is the last number comparable to anything in serious mathematics, apart from some uncomputable numbers from Busy Beaver game, Rayo's function and their extensions.


The name of this number is based on Latin prefix "bi-" and the number "nucleaxul".


Notation Approximation
BEAF {200,200/2}
Bashicu's pair sequence (0,0)(1,1)(2,2)...(198,198)(199,199)[199]
Fast-growing hierarchy \(f_{\psi(\Omega_\omega)}(200)\)


  1. Lawrence Hollom's large numbers site

See also

Gigantixul | Hyperfactorial array notation numbers: Nucleaxul Group

Faxul · Giaxul · Hugexul · Enormaxul · Destruxul · Extremexul · Gigantixul · Nucleaxul · BIGG

Nucleaxul group: Nucleaxul · Nucleabixul · Nucleatrixul · Nucleaquaxul
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