N Coloring Graph. In the complete graph each vertex is adjacent to remaining n 1 vertices. Hence each vertex requires a new color. Hence the chromatic number of K n.

Hence each vertex requires a new color. In the complete graph each vertex is adjacent to remaining n 1 vertices. Hence the chromatic number of K n.
In the complete graph each vertex is adjacent to remaining n 1 vertices.
Hence each vertex requires a new color. Hence the chromatic number of K n. Hence each vertex requires a new color. In the complete graph each vertex is adjacent to remaining n 1 vertices.