## Engineer's Book

————— PHYSICS – SPACE – ALGORITHMICS ——-

## Algorithmic 06 – The Billion, the Billion* ! Primes !

Written By: Jean-Paul Cipria - Mai• 31•17

Prime numbers – The Billion* – © J.P. Cipria – 2017

Here after two days calculations by a simple computer with no bugs we do 1 billion searches by number of prime numbers in parts of density number $Density=\frac{dEntropy}{dx}$ then we do  $Calculations=\int_{x=1}^{10^9} x.\int_{Entropy=1}^{x~up~to~\sqrt(50847534)}d(Entropy)$ divisions. It is a … great number.

(*) : The billion, the billion : Title of a caricatural joke by « Les inconnus » to describe the very poor level of french television intended to brutify people and to elect a financial to the presidential position after DSK destructed by USA justice. France is not yet a Democraty since 2004. Be aware of that citizens, engineers and scientists. Let’s read « Tite Live Commentaries » by Machiavel in … 1515.

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Created :2017-05-31 17:32:12. – Modified : 2018-07-06 11:53:32.

« What’s Up, Doc ? » ©J.P. Cipria –

Very Easy Level (CM2 – Primary School)

Expériences En Construction.

Then it remains a small part of true … and enjoy it. It is just an cool play to heat my computer then computer stopped while processor heated. It sleeped a long time. I breathed it with my own … breath. It wake up and continued its job. Good computer !

… too follow : x=900 000 000 the may 31th at 17h29 TU+1.

Then after two days calculations for fun (not for my processor ?) it is possible to think about another method to obtain the same results. « And what about ? » can said idiot academic inspectors in France.

To follow … I don’t use my brain for nothing … You will see … Maybe ?

« It’s a long way to be at the top when you are a single scientist. »
– AC D … euh, JP Cipria. 😉 –
It’s not so easy to whistle electric guitar ! Then let’s sing it in your head : ♫ ♫ ♪ ♪ ♪ ♪ ♫ ♫♪ ♪ ♪ ♪ to coda and waoua, woua in your brain, if you can ?

# 01/06/2017 : the billion, the billion !!!

## Results Statistics

• File Size : 546.2 M.O. the Ascii file size begins to be big.
• Total Number : 50 847 534 different Primes on 1000 000 000 tries.
• Durée=181135 seconds = 50.3h = 2 days and 2h16min.

## Last primes

• Position : … 50847532   50847533    50847534
• Prime     : … 99999893  999999929  999999937

« Les sous-sous dans la popoche ?** ». « The euro-ro in the po-po-cket ? »

(**): It is a child funny expression as a double syllabe when a small child tries to speak a simple word . The meaning is you earn a lot of money without any merits or working like some presidents, some financials and CEO. It is ironic.

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# Matlab Program

End of Matlab Program.

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That’s all folks !

Jean-Paul Cipria
« It’s a long way to be at the top when you are a single scientist. »♫ – AC D… euh, JP Cipria.
31/05/2017

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