The Great Megisiquadruon is equal to M(Great Megisitruon,3), using the Hyper-Moser notation M(m,n) for m inside n+2-gon in Steinhaus-Moser notation. The term was coined by Aarex Tiaokhiao. In the up-arrow notation Grand Megisiquadruon is between \(4 \uparrow^{4} 6\) and \(4 \uparrow^{4} 7\).