Fermat polygonal number theorem
= Fermat polygonal number theorem
{wiki=Fermat_polygonal_number_theorem}
Fermat's polygonal number theorem states that every positive integer can be expressed as the sum of at most \\( n \\) \\( n \\)-gonal numbers. More specifically, for any positive integer \\( n \\), every positive integer can be represented as the sum of \\( n \\) or fewer \\( n \\)-gonal numbers. An \\( n \\)-gonal number is a number that can be arranged in a polygon with \\( n \\) sides.