## Do we know the value of $3 \uparrow\uparrow\uparrow 3$

I was studying Graham’s number and before we can even start calculating $g_1$ which is: $g_1 = 3\uparrow\uparrow\uparrow\uparrow 3$, I was wondering if we even have the actual value of: $3 \uparrow\uparrow\uparrow 3$. I know it is a power tower of 3’s that is 7.6 trillion high (which would reach from the earth to sun … Read more