 ##  [Bertrand's Postulate](/bertrands-postulate) 

  ##  [Bertrand's Postulate](https://puremath.quantumdictionary.io/bertrands-postulate-0) 

  

 [![Pure Mathematics Dictionary](/sites/default/files/styles/large/public/2026-01/Pure%20Mathematics.png.webp?itok=5pZnFQ59)](/topic-specific-dictionaries/mathematics-logic/pure-mathematics)

- Mathematics &amp; Logic -

**Pure Mathematics Dictionary**

 







 

 

 

 



 

 

 

 

Definition

The statement that for every integer n &gt; 1 there exists at least one prime p with n &lt; p &lt; 2n; equivalently there is always a prime strictly between n and 2n.