The bongulus is equal to {10,100 (0,0,1) 2} in BEAF, or 1001002 & 10. Its structural array has 1001002 entries total. This number originally took on the value of what is now called the super gongulus.The term was coined by Jonathan Bowers. [1]


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


Notation Approximation
Bird's array notation \(\{10,100 [1,1,2] 2\}\)
Aarex's array notation \(\{10,100 [1[3]2] 2\}\)
Cascading-E notation \(E100\#\text{^}\#\text{^}\#\#100\)
Hyperfactorial Array Notation \(100![1,[1,[1,99,2],1,2],1,3]\)
X-Sequence Hyper-Exponential Notation \(10\{X^{X^{X^2}}\}100\)
Fast-growing hierarchy \(f_{\omega^{\omega^{\omega^2}}}(100)\)
Hardy hierarchy \(H_{\omega^{\omega^{\omega^{\omega^2}}}}(100)\)
Slow-growing hierarchy \(g_{\vartheta(\Omega^{\Omega^{\Omega\omega}})}(100)\)


  1. Bowers, JonathanInfinity Scrapers. Retrieved January 2013.

See also