Ferrier's prime

Ferrier's prime is \((2^{148}+1)/17 = 20,988,936,657,440,586,486,151,264,256,610,222,593,863,921\).Hardy, G. H. and Wright, E. M. (1979) An Introduction to the Theory of Numbers, 5th ed. Oxford, England: Clarendon Press, pp. 16-22.Weisstein, E. W. Ferrier's Prime MathWorld - A Wolfram Web Resource. Discovered by Aimé Ferrier in 1951, it was the largest known prime at the time of discovery.
== Approximations ==
Notation 	Lower bound 	Upper bound
Scientific notation 	\(2.098\times10^{43}\) 	\(2.099\times10^{43}\)
Arrow notation 	\(54\uparrow25\) 	\(5\uparrow62\)
Steinhaus-Moser Notation 	29[3] 	30[3]
Copy notation 	1[44] 	2[44]
Taro's multivariable Ackermann function	A(3,140) 	A(3,141)
Pound-Star Notation 	#*(2,1,3,3)*9 	#*(5,0,6,3,5)*6
BEAF 	{54,25} 	{5,62}
Hyper-E notation 	2E43 	E[5]62
Bashicu matrix system 	(0)(0)(0)(0)[510] 	(0)(0)(0)(0)[511]
Hyperfactorial array notation 	37! 	38!
Fast-growing hierarchy 	\(f_2(136)\) 	\(f_2(137)\)
Hardy hierarchy 	\(H_{\omega^2}(136)\) 	\(H_{\omega^2}(137)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega2+3}15}(16)\)	\(g_{\omega^{24}10}(58)\)
== Sources ==
Category:Numbers
Category:Class 2
Category:Prime numbers
Category:Numbers with 30 to 100 digits
Category:Eponymous numbers