Facgigol is equal to (10^^^^^100)! or the factorial of gigol.[1] The number was coined by Aarex Tiaokhiao.

Approximations

Notation Approximation
Arrow notation \(10\uparrow 10\uparrow\uparrow\uparrow\uparrow\uparrow 100\)
Hyper-E notation E(E1#1#1#1#100)

Sources

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