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What is this "fundamental pure number" please ?

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Hi,

I have read here under (2.1) that [math]c^5/(G \hbar \Lambda_{s^{-2}}[/math] is a "fundamental pure number"

It's the word "fundamental" that questions my mind. What is that fondamental notion please?

Edited by stephaneww

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On 6/27/2020 at 8:10 AM, stephaneww said:

Hi,

I have read here under (2.1) that c5/(GΛs2 is a "fundamental pure number"

It's the word "fundamental" that questions my mind. What is that fondamental notion please?

I've got it. It's just [math]\frac{1}{t_p^2\Lambda_{s^{-2}}}[/math] or [math]\frac{1}{l_p^2\Lambda_{m^{-2}}}[/math], whatever you want. The  factor is [math]8\pi[/math]. 

Edited by stephaneww

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