Polygonal number
= Polygonal number
{wiki=Polygonal_number}
A polygonal number is a type of figurate number that represents a polygon with a certain number of sides. Polygonal numbers can be categorized based on the number of sides in the polygon. The most common types of polygonal numbers include: 1. **Triangular Numbers**: These are the sums of the first \\( n \\) natural numbers and can be represented as dots forming an equilateral triangle.