Deutero-tethrahecton

Deutero-tethrahecton is equal to E100(#^^#^100)*(#^^#^100)100 using Extended Cascading-E Notation. The term was coined by Sbiis Saibian. The expression should not to be confused with deutero-tethratope, which is E100#^^#^#*#^^#^#100, which is much larger than this number.
==Approximations in other notations==
Notation 	Approximation
Bird's array notation 	{100,100[1\1\1\1...1\1\1\2]1[1\1\1\1...1\1\1\2]2} (where there are 100 1's)
Fast-growing hierarchy	\(f_{\varphi(100,0)^2}(100)\) \(= f_{\omega^{\varphi(100,0) \times 2}}(100)\)
== Sources ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Extended Cascading-E numbers
Category:Binary phi level
Category:Tethratope series