Encyclopedia > Twenty

  Article Content

Twenty

Twenty (20) is the natural number following nineteen and preceding twenty-one.

Twenty is a composite number, its proper divisors being 1, 2, 4, 5 and 10.

Twenty is used as a base number for vigesimal number systems.

In the old UK currency system, there were twenty shillings in a pound.

A group of twenty is often referred to as a score.

A polyhedron with twenty faces is an icosahedron.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Michael Barrymore

... born 4 May 1952, is a British comedian famous for his variety shows. This article is a stub. You can help Wikipedia by fixing it. Ea ...

 
 
 
This page was created in 36.1 ms