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The petafaxul (also called faxulquinquenek[1]) is equal to terafaxul!, ((((faxul!)!)!)!)! or (((((200!)!)!)!)!)![2], or 200!6 using Nested Factorial Notation. The term was coined by Lawrence Hollom.

Etymology[]

The name of this number is based on SI prefix "peta-" and the number "faxul".

Approximations in other notations[]

Notation Approximation
Scientific notation \(10^{10^{10^{10^{10^{10^{377}}}}}}\)
Up-arrow notation \(10 \uparrow 10 \uparrow 10 \uparrow 10 \uparrow 10 \uparrow 10 \uparrow 377\)
Chained arrow notation \(10 \rightarrow (10 \rightarrow (10 \rightarrow (10 \rightarrow (10 \rightarrow (10 \rightarrow 377)))))\)
BEAF \(\{10,\{10,\{10,\{10,\{10,\{10,377\}\}\}\}\}\}\)
Hyper-E notation \(\text{E}377.4701159159172\#6\)
Fast-growing hierarchy \(f^6_2(1242)\)
Hardy hierarchy \(H_{(\omega^2) 6}(200)\)
Slow-growing hierarchy \(g_{\omega^{\omega^{\omega^{\omega^{\omega^{\omega^\omega}}}}}}(200)\)

Conversion[]

(PetaFaxul)\(!\) = Exafaxul

Sources[]

See also[]

Hyperfactorial array notation numbers: Minor Faxul Group | Major (Giaxul)

Faxul group: Faxul (Kilo- · Mega- · Giga- · Tera- · Peta- · Exa- · Grand (Kilo- · Mega- · Giga- · Tera- · Peta- · Exa-) · Bigrand (Kilo- · Mega-) · Trigrand (Kilo-) · Quadgrand · Quintgrand)
Expofaxul group: Expofaxul (Kilo- · Mega- · Giga- · Tera- · Peta- · Exa- · Grand (Kilo- · Mega- · Giga- · Tera- · Peta- · Exa-) · Bigrand (Kilo- · Mega-) · Trigrand (Kilo-) · Quadgrand · Quintgrand)
Tetrofaxul group: Tetrofaxul (Kilo- · Mega- · Giga- · Tera- · Peta- · Exa- · Grand (Kilo- · Mega- · Giga- · Tera- · Peta- · Exa-) · Bigrand (Kilo- · Mega-) · Trigrand (Kilo-) · Quadgrand · Quintgrand)
Pentofaxul group: Pentofaxul (Kilo- · Mega- · Giga- · Grand (Kilo- · Mega- · Giga-) · Bigrand · Trigrand)
Hexofaxul group: Hexofaxul (Kilo- · Mega- · Giga- · Grand (Kilo- · Mega- · Giga-) · Bigrand · Trigrand)
Heptofaxul group: Heptofaxul · Octofaxul
Hyperfaxul group: Hyperfaxul (Kilo- · Mega- · Giga- · Tera- · Peta- · Exa- · Grand (Kilo- · Mega- · Giga- · Tera- · Peta- · Exa-) · Bigrand (Kilo- · Mega-) · Trigrand (Kilo- · Mega-) · Quadgrand · Quintgrand)
Redstonepillager's extensions: Dopperfaxul · Googaxul
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