The science and technology channel presents the famous Sheldon Cooper's theorem, That it was an approach that was made in one of Sheldon's dialogues in the series The Big Bang Theory , specifically in the chapter 73 And that later his validity was seen and demonstrated.

We start directly…

What is the best number?

Sheldon asks his friends in the episode 73 The La Series The Big Bang theory.

Duck: There is only one correct answer.

And finally gives us the answer:

"He 73 is the 21st Primo number. By investing your figures we get 37, What is the Primo Number 12 °. And when investing this we get 21, which is the product of, Prepare, 7 y 3”.

From this episode, Many mathematicians were raised if there are other cousins ​​with these characteristics or is really the 73 The only one.

Two Americans experts in mathematics, Teachers and fans of the series, Carl Pomerance y Christopher Spicer, They got to work to discover it.

Its conclusion is that the 73 It is the only prime number that satisfies all the characteristics described by Sheldon.

In 2015, five years after the emission of the episode, Spicer and two colleagues introduced the definition of ‘Sheldon Primo’:

From this episode, Many mathematicians were raised if there are other cousins ​​with these characteristics or is really the 73 The only one.

The n-that prime number, pn, It will be a sheldon cousin if he fulfills that the product of his digits is n and if, besides, The number obtained by investing your figures, rev(pn), It is the rev(n)-ésimo cousin; that is to say, you rev(pn)=prev(n).

Through algorithms and computing they verified that only the 73 meets Sheldon's cousin conditions.

In honor of this work, David Saltzberg, Physical and scientific advisor to The Bing Bang Theory, I introduced into a chapter a slate in the background with some of the calculations of this demonstration.

As a curiosity, Jim Parsons, The actor who plays Sheldon was born in 1973.

We hope you liked this scientific curiosity.

You may also be interested is video about 2+2 = 5 : https://www.youtube.com/watch?v=H_Aak2uSXTM

You may also be interested in this other blog article about a mathematical magic trick: https://cienciaytecnologia.online/ciencia/truco-matematico/