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The grand Petagiaxul is equal to (((...(((200![200])![200])![200])...))) (with petagiaxul parentheses), using Hyperfactorial array notation. The term was coined by Lawrence Hollom.[1]

Etymology

The name of this number is based on the word "grand" and the number "Petagiaxul".

Approximations in other notations

Notation Approximation
Chained arrow notation \(200\rightarrow200\rightarrow(200\rightarrow200\rightarrow7\rightarrow201)\rightarrow201\)
BEAF \(\{200,\{200,7,200,2\},200,2\}\)
Fast-growing hierarchy \(f_{\omega+200}(f_{\omega+199}^6(200))\)
Hardy hierarchy \(H_{\omega^{\omega+200}+\omega^{\omega+199}6}(200)\)
Slow-growing hierarchy \(g_{\varphi(1,199,\varphi(1,199,0))}(6)\)

Sources

See also


Giaxul group: Giaxul · Kilogiaxul · Megagiaxul · Gigagiaxul · Teragiaxul · Petagiaxul · Exagiaxul · Grand Giaxul · Grand Kilogiaxul · Grand Megagiaxul · Grand Gigagiaxul · Grand Teragiaxul · Grand Petagiaxul · Grand Exagiaxul · Bigrand Giaxul · Bigrand Kilogiaxul · Bigrand Megagiaxul · Trigrand Giaxul · Trigrand Kilogiaxul · Trigrand Megagiaxul · Quadgrand Giaxul · Quintgrand Giaxul
Giabixul group: Giabixul · Kilogiabixul · Megagiabixul · Gigagiabixul · Grand Giabixul · Grand Kilogiabixul · Grand Megagiabixul · Grand Gigagiabixul · Bigrand Giabixul · Trigrand Giabixul
Giatrixul group: Giatrixul · Kilogiatrixul · Megagiatrixul · Gigagiatrixul · Grand Giatrixul · Grand Kilogiatrixul · Grand Megagiatrixul · Grand Gigagiatrixul · Bigrand Giatrixul · Trigrand Giatrixul
Giaquaxul group: Giaquaxul · Kilogiaquaxul · Megagiaquaxul · Gigagiaquaxul · Grand Giaquaxul · Grand Kilogiaquaxul · Grand Megagiaquaxul · Grand Gigagiaquaxul · Bigrand Giaquaxul · Trigrand Giaquaxul
Cookiefonster's extensions: Giaquixul
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