Please look at Right-Reverse Factorial Notation.
k₁= Googolplexian¡¡¡....¡¡^Googolplexian there is Googolplexian¡¡¡¡....(Googolplexian amount of ¡:s)...¡¡^Googolplexian amount of ¡:s
k₂= k₁¡¡¡......¡¡^k₁ there is k₁¡¡¡...(k₁ amount of ¡:s)...¡¡^k₁ amount of ¡:s
k₃= k₂¡¡¡......¡¡^k₂ there is k₂¡¡¡...(k₂ amount of ¡:s)...¡¡^k₂ amount of ¡:s
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K = kₖ₁₀₀
K is Kerem's Number.