The undecimal-googol is equal to 11100 ~ 1.378*10104.[1] The term was coined by Aarex Tiaokhiao.


Notation Lower bound Upper bound
Scientific notation \(1.378\times10^{104}\) \(1.379\times10^{104}\)
Arrow notation \(11\uparrow100\)
Steinhaus-Moser Notation 58[3] 59[3]
Copy notation 1[105] 2[105]
Chained arrow notation \(11→100\)
Taro's multivariable Ackermann function A(3,342) A(3,343)
Pound-Star Notation #*(6,13,9,9,5,7)*11 #*(0,1,4,5,4,3,3)*9
BEAF {11,100}
Hyper-E notation E[11]100
Bashicu matrix system (0)(0)(0)(0)(0)[1796] (0)(0)(0)(0)(0)[1797]
Bird's array notation {11,100}
Hyperfactorial array notation 72! 73!
Strong array notation s(11,100)
Fast-growing hierarchy \(f_2(337)\) \(f_2(338)\)
Hardy hierarchy \(H_{\omega^2}(337)\) \(H_{\omega^2}(338)\)
Slow-growing hierarchy \(g_{\omega^{\omega9+1}}(11)\)


Community content is available under CC-BY-SA unless otherwise noted.