Penteicosillion

The penteicosillion is equal to \(10^{3\times 10^{75}+3}\) or \(10^{3\text{ quattuorvigintillion }3}\).1.8. Extensions to the -illions II: Jonathan Bowers' -illions - Pointless Large Number Stuff
==Approximations==
Notation 	Lower bound 	Upper bound
Arrow notation 	\(1000\uparrow(1+10\uparrow75)\) 	\(1000\uparrow(1+10\uparrow75)\)
Down-arrow notation 	\(1000\downarrow\downarrow26\) 	\(479\downarrow\downarrow29\)
Steinhaus-Moser Notation 	44[3][3] 	45[3][3]
Copy notation 	2[2[76]] 	3[3[76]]
H* function 	H(H(24)) 	H(H(24))
Taro's multivariable Ackermann function	A(3,A(3,249)) 	A(3,A(3,250))
Pound-Star Notation 	#*((1))*(3,7,3,2)*8 	#*((1))*(0,6,3,3,5)*5
BEAF 	{1000,1+{10,75}} 	{1000,1+{10,75}}
Hyper-E notation 	E(3+3E75) 	E(3+3E75)
Bashicu matrix system 	(0)(1)[15] 	(0)(1)[16]
Hyperfactorial array notation 	(55!)! 	(56!)!
Fast-growing hierarchy 	\(f_2(f_2(244))\) 	\(f_2(f_2(245))\)
Hardy hierarchy 	\(H_{\omega^22}(244)\) 	\(H_{\omega^22}(245)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^{\omega7+5}3+3}}(10)\)	\(g_{\omega^{\omega^{\omega7+5}3+3}}(10)\)
== Sources ==
Category:Illion
Category:Class 3
Category:Greek-based name
Category:Numbers
Category:Middle class 3
Category:Tier 2 -illion numbers