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Decapentated dekacthulhum is equal to E100(#{8}#)^^^#10 in Extended Cascading E notation. This number was coined by Sbiis Saibian.[1]

Approximations[]

Notation Approximation
Fast-growing hierarchy \(f_{\Gamma_{\varphi(6,0,0)+1}[10]}(100)\)

Source[]

  1. Sbiis Saibian. Extended Cascading-E Numbers Part V - Large Numbers. Retrieved July 12, 2025.