 # Pentagonal Number Calculator

## Enter pentagonal number statement

### How does the Pentagonal Number Calculator work?

This calculator determines the nth pentagonal number
This calculator has 1 input.

### What 1 formula is used for the Pentagonal Number Calculator?

1. Pn = n(3n - 1)/2

For more math formulas, check out our Formula Dossier

### What 5 concepts are covered in the Pentagonal Number Calculator?

figurate number
a number that can be represented by a regular geometrical arrangement of equally spaced points. If the arrangement forms a regular polygon, the number is called a polygonal.
formula
a fact or a rule written with mathematical symbols. A concise way of expressing information symbolically.
number
an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations and for showing order in a series or for identification. A quantity or amount.
pentagon
a polygon of five angles and five sides
pentagonal number
A number that can be shown as a pentagonal pattern of dots.
n(3n - 1)/2