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Hello there.

This is Numberphile. We mainly post videos about mathematics and just numbers in general.

How Big is Graham's Number? (feat Ron Graham)

How Big is Graham's Number? (feat Ron Graham)

Brady Haran
Ron Graham, Graham's Number

See our other Graham's Number videos: http://bit.ly/G_Number
More Ron Graham Videos: http://bit.ly/Ron_Graham

The magnitude of Graham's Number is difficult to fathom - Ron Graham himself attempts to explain.
WHAT IS the number: http://youtu.be/HX8bihEe3nA
Extra footage: http://youtu.be/rGWuimr5CGQ
Our original Graham's Number video: http://youtu.be/XTeJ64KD5cg

Any errors in this video are mine (Brady's) in editing... For example 3^^^3 is actually even bigger than I say... Graham's Number is just too big for my small brain!
See an improved explanation at: http://youtu.be/txajrEOTkuY

Wikipedia page on Graham's Number: http://en.wikipedia.org/wiki/Graham's_number
And the arrow notation used here: http://en.wikipedia.org/wiki/Knuth%27s_up-arrow_notation

The Mandelbrot Set

The Mandelbrot Set
What is Graham's Number? (feat Ron Graham)

What is Graham's Number? (feat Ron Graham)