Not to be confused with googolhepex.

Googolheptex is equal to E100#1#1#1#1#1#1#2 using Hyper-E notation.[1] The term was coined by Sbiis Saibian. This number belongs to the Gaspgol regiment.

Approximations in other notations

Notation Approximation
Up-arrow notation \(100 \uparrow^{7} 10 \uparrow 100\)
Chained arrow notation \(100 \rightarrow 10^{100} \rightarrow 7 \)
Hyperfactorial array notation \((70!)!6\)
BEAF \(\{100,\{10,100\},7\}\)
Strong array notation s(100,s(10,100),7)
Fast-growing hierarchy \(f_8(f_2(324))\)
Hardy hierarchy \(H_{\omega^8+\omega^2}(324)\)
Slow-growing hierarchy \(g_{\varphi(6,\omega^\omega)}(100)\)


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