The colossolplex (formerly colossalplex[1]) is equal to \(\lbrace 10,\text{colossol} (3) 2 \rbrace\) in BEAF.[2] The term was coined by Jonathan Bowers.


The name of this number is based on suffix "-plex" and the number "colossol".


Notation Approximation
Bird's array notation \(\{10,\text{colossol} [4] 2\}\)
Cascading-E notation \(E10\#\text{^}\#\#\#10\#2\)
Hyperfactorial Array Notation \((10![1,[1,1,4],1,2])![1,[1,1,4],1,2]\)
Fast-growing hierarchy \(f_{\omega^{\omega^3}}(f_{\omega^{\omega^3}}(10))\)
Hardy hierarchy \(H_{(\omega^{\omega^{\omega^3}}) 2}(10)\)
Slow-growing hierarchy \(g_{\vartheta(\Omega^{\Omega^2\vartheta(\Omega^{\Omega^2\omega})})}(10)\)


  1. Infinity Scrapers - Sbiis Saibian's large numbers site
  2. Bowers, JonathanInfinity Scrapers. Retrieved January 2013.

See also

Jonathan Bowers' colossol series
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