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Ultracentifact is equal to 100*(100,100:100) in extended mixed factorials. The term was coined by SpongeTechX. This number is comparable to gugolthra and biggol.

Etymology

The name of this number is based on the word ultra and the number centifact.

Approximations in other notations

Notation Approximation
Bird's array notation \(\{10,10,100,2\}\)
BEAF \(\{10,10,100,2\}\)
Hyper-E notation \(E100\#\#100\#\#100\)
Chained arrow notation \(100 \rightarrow 100 \rightarrow 100 \rightarrow 100\)
Hyperfactorial array notation \(100![1,2]\)
Strong Array Notation \(s(10,101,1,3)\)
Fast-growing hierarchy \(f_{\omega2}(100)\)
Hardy hierarchy \(H_{\omega^{\omega2}}(100)\)
Slow-growing hierarchy \(g_{\varphi(1,\omega,0)}(100)\)

Sources

SpongeTechX's Googology World

See also

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