A speed-up calculation of the functions nextprime and prevprime is intended. In some distributions used it was observed similarities to "Prime Number Races" (primes of the form qn+a).
Dr. John May
Prof. Josef Betten
Michael Carter
Maplesoft
Czeslaw Koscielny
Dr. Robert Lopez
Roland Engdahl
John Cosgrave
Michael Monagan
Samuel Pine