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

Etymology

The name of this number is based on SI prefix "exa-" and the number "giaxul".

Approximations in other notations

Notation Approximation
Hyper-E notation \(\textrm E200\#\#200\#\#200\#7\)
Chained arrow notation \(200\rightarrow200\rightarrow8\rightarrow201\)
BEAF \(\{200,8,200,2\}\)
Fast-growing hierarchy \(f_{\omega+199}^7(200)\)
Hardy hierarchy \(H_{\omega^{\omega+199}7}(200)\)
Slow-growing hierarchy (using this system of fundamental sequences) \(g_{\varphi(1,199,0)}(7)\)

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
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