Grand Petahugexul

The Grand Petahugexul is equal to ((...((200![200(1)200])![200(1)200])![200(1)200]...)![200(1)200])![200(1)200] (with Petahugexul parentheses), using Hyperfactorial array notation. The term was coined by Lawrence Hollom.Lawrence Hollom's large number site
=== Etymology ===
The name of this number is based on the word "grand" and the number "Petahugexul".
=== Approximations ===
Notation 	Approximation
Bird's array notation 	\(\{200,\{200,7,201[1[1\neg3]200]2\},201[1[1\neg3]200]2\}\)
Hierarchical Hyper-Nested Array Notation 	\(\{200,\{200,7,201[1[1/2\sim2]200]2\},201[1[1/2\sim2]200]2\}\)
BEAF 	\(\{200,\{200,7,201(\{X,X*199,1,2\})2\},201(\{X,X*199,1,2\})2\}\)Using particular notation \(\{a,b (A) 2\} = A \&\ a\) with prime b.
Fast-growing hierarchy (with this system of fundamental sequences)	\(f_{\Gamma_{198}+200}(f_{\Gamma_{198}+199}^6(200))\)
Hardy hierarchy (with this system of fundamental sequences) 	\(H_{\Gamma_{198}\omega^{200}+\Gamma_{198}\omega^{199}6}(200)\)
Slow-growing hierarchy 	\(g_{\theta(\Omega_2+\varphi(\Omega_2,199)+200,\vartheta(\Omega_2+\varphi(\Omega_2,199)+200))}(6)\)
=== Sources ===
=== See also ===
Category:Numbers
Category:Numbers by Lawrence Hollom
Category:Factorial numbers
Category:Powers of 200
Category:Bachmann's collapsing level