Heads-Pent-1-primol is a number equal to R*(5) using Primarial Functions. It's also equal to 1171953125 and its value is approximately about 1010106.217637. The term has been coined by Licorneuhh[1]


Notation Lower bound Upper bound
Arrow notation \(11 \uparrow 7 \uparrow 1953125\)
Steinhaus-Moser Notation 6[3][3][3] 7[3][3][3]
BEAF {11,{7,{5,9}}}
Hyperfactorial array notation (325064!)! (325065!)!
Hyper-E notation E6#3 E7#3
Fast-growing hierarchy \(f_2^3(18)\) \(f_2^3(19)\)
Hardy hierarchy \(H_{\omega^23}(18)\) \(H_{\omega^23}(19)\)


  1. Numbers | Licorneuhh's numbers site (retrieved at UTC 16:58 17/12/2020)
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