What is Graham's Number

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This is not my video, I am only borrowing this clip to explain what grahams number is for my website.
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Every time. Every. Single. Time. I think I am ready to fathom this number and then it just re-blows my mind all over again. Nice short and great description.

clintonevans
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If you wrote each digit of Graham's number a Planck length big, there would not be enough space in the entire observable universe to write the entire number.

timothywood
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Why did Graham choose to stop at G(64)? What is special about the number 64?

The observable universe (OU) has a volume of about 4 x 10^80 m^3. There are 4 x 10^185 Planck Volumes (PV) in the OU. Graham's number of PV would easily fill the OU. Graham's number of PV would fill a volume VASTLY larger than the OU, a volume that is not imaginable.

MrAquaman
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Ron Graham( the guy who first calculated the number) thinks it is unlikely that we will ever know the leading digit of this number. You could build a quantum computer the size of the solar system and it would not be able to determine the leading digit of this number!

jasonkinzie
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Description: just link the original video, no need to steal views!

yoshi
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1 + 1/2 + 1/3 + 1/4 + 1/5 …. Eventually it will equal graham’s #

redvine
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And this is but a speck compared to a lot of other numbers nowadays

kargaroc
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The number of digits equal to the number of attosecond's ever since the start of the big bang vs Graham's Number

floridahighwaypatrol
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0, Graham Number . One is the largest number because it is infinity. We can divide one by Graham's Number. There is no infinity. The unit is infinity.

viktorasvolskis
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What if you filled all the space in the universe with atoms like filling a sphere with sand... I wonder how that would compare to this number?

Naomi-tbxn
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So
G64 (64^) G64
I don't think that number could be more that a concept, but then again I'm just being a bit silly.

dreamcastknight
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Zero in relation to Rayo's number

Chris-dgns
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Why 3? Why start with a 3? Why not 1? 2? 5 or 7?

stevencameron