# division

## Primary tabs

Defines:
quotient, ratio, fundamental property of quotient, reduction
Type of Math Object:
Definition
Major Section:
Reference
Parent:
Groups audience:

## Mathematics Subject Classification

### The entry "division" became invisible.

The reason was a dollar-sign error =o)

Corrected!

BTW, the PM search engine has long been out of order. It’s quite difficult to find entries on a wanted subject.

### Carmichael numbers and Devaraj numbers

Carmichael numbers constitute a sub-set of Devaraj numbers. To understand more about them refer sequences A 104016, A 104017 and A 162290. Some interesting facts pertaining to them will follow.