## FANDOM

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Ennalogue
100000.....00000    8

100000.....00000

100000.....00000
100000.....00000
10000000000
Ennalogue in zeroes
The ennalogue is equal to E1#9 = EEEEEEEEE1 = 10^10^10^10^10^10^10^10^10, using Hyper-E Notation.[1][2] The term was coined by Sbiis Saibian.

### Etymology

The name of this number is based on Greek prefix "enna-" and the word "logarithm".

### Approximations in other notations

Notation Approximation
Scientific notation $$10^{10^{10^{10^{10^{10^{10^{10^{10}}}}}}}}$$ (exact value)
Up-arrow notation $$10 \uparrow\uparrow 9$$ (exact value)
Chained arrow notation $$10 \rightarrow 9 \rightarrow 2$$ (exact value)
BEAF $$\{10,9,2\}$$ (exact value)
Hyperfactorial array notation $$((((((((13!0)!0)!0)!0)!0)!0)!0)!0$$
Fast-growing hierarchy $$f_2(f_2(f_2(f_2(f_2(f_2(f_2(f_2(28)))))))))$$
Hardy hierarchy $$H_{(\omega^2) 8}(28)$$
Slow-growing hierarchy $$g_{\omega^{\omega^{\omega^{\omega^{\omega^{\omega^{\omega^{\omega^\omega}}}}}}}}(10)$$ (exact value)

### Sources

1. Saibian, Sbiis. Hyper-E Numbers
2. Sbiis Saibian's Ultimate Large Numbers List