The quindecimal-googol is equal to 15100 ~ 4.065*10117.[1] The term was coined by Aarex Tiaokhiao.

Approximations Edit

Notation Lower bound Upper bound
Scientific notation \(4.065\times10^{117}\) \(4.066\times10^{117}\)
Arrow notation \(15\uparrow100\)
Chained arrow notation \(15→100\)
Steinhaus-Moser Notation 64[3] 65[3]
Copy notation 3[118] 4[118]
Taro's multivariable Ackermann function A(3,387) A(3,388)
Pound-Star Notation #*(6,2,11,4,7,6,2,3)*8 #*(7,2,11,4,7,6,2,3)*8
BEAF {15,100}
Bird's array notation {15,100}
Strong array notation s(15,100)
Hyper-E notation E[15]100
Hyperfactorial array notation 79! 80!
Fast-growing hierarchy \(f_2(382)\) \(f_2(383)\)
Hardy hierarchy \(H_{\omega^2}(382)\) \(H_{\omega^2}(383)\)
Slow-growing hierarchy \(g_{\omega^{\omega6+10}}(15)\)


  1. Part 1 (LAN) - Aarex Googology