Googolex

Googolex is a number in the googol family with the addition of the -ex suffix, a verbalized X, to raise the -L (50) to -LX (60). It is equal to \(120^{60}\), or \(g(2,60,120)\) in the Ackermann's Generalized Exponential Notation.Mathematics Beyond the Googol It is 125 digits long. Its decimal expression is
== Approximations ==
Notation 	Lower bound 	Upper bound
Scientific notation 	\(5.634\times10^{124}\) 	\(5.635\times10^{124}\)
Arrow notation 	\(120\uparrow60\) 	\(120\uparrow60\)
Steinhaus-Moser Notation 	68[3] 	69[3]
Copy notation 	5[125] 	6[125]
Taro's multivariable Ackermann function	A(3,411) 	A(3,412)
Pound-Star Notation 	#*(4,9,2,7,5,0,0,10)*8 	#*(5,9,2,7,5,0,0,10)*8
BEAF 	{120,60} 	{120,60}
Hyper-E notation 	E[120]60 	E[120]60
Bashicu matrix system 	(0)(0)(0)(0)(0)[7915] 	(0)(0)(0)(0)(0)[7916]
Hyperfactorial array notation 	83! 	84!
Fast-growing hierarchy 	\(f_2(405)\) 	\(f_2(406)\)
Hardy hierarchy 	\(H_{\omega^2}(405)\) 	\(H_{\omega^2}(406)\)
Slow-growing hierarchy 	\(g_{\omega^{60}}(120)\)	\(g_{\omega^{60}}(120)\)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Googo-
Category:Googol series
Category:Numbers by André Joyce
Category:Numbers with 101 to 999 digits
Category:Roman numeral-based name