Great googol (Saibian)

Not to be confused with greagol or Joyce great googol. A great googol is defined by Sbiis Saibian as equal to E100##1#2 in Extended Hyper-E notation, which simplifies to E100 100's. === Approximations in other notations ==={| border="0" cellpadding="1" cellspacing="1" class="article-table" style="width: 500px;"|-! scope="col"|Notation! scope="col"|Approximation|-|Up-arrow notation|\(100 \uparrow^{googol} 101\)|-|Chained arrow notation|\(100 \rightarrow 101 \rightarrow (10 \rightarrow 100)\)|-|Hyperfactorial array notation|\((70!)![1]\)|-|BEAF|\(\{100,101,\{10,100\}\}\)|-|Fast-growing hierarchy|\(f_\omega(googol)\)|-|Hardy hierarchy|\(f_{\omega^\omega}(googol)\)|-|Slow-growing hierarchy|\(f_{\varphi(\omega,0)}(googol)\)|}