Prime have relatively prime. Many families of graphs
Prime Labelling with Spiral Gaussian integersS. Kavitha1 and G.Jayalalitha21S.Kavitha,Research scholar, Bharathiar University,Coimbatore,Tamilnadu,India [email protected],Associate Professor,Department of Mathematics,Vels University,Chennai,Tamilnadu,[email protected] A Prime Labelling of a graph G with n vertices is a assignment of first n natural numbers to the vertices of G such that any two adjacent vertices have relatively prime…