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SERMON (South East Regional Meeting On Numbers)
April 17-18, 1999
University of South Carolina
Columbia, SC, USA

Organizers
Michael Filaseta, Kevin Ford, Richard Hudson, Robert Murphy, Kostya Oskolkov, Ognian Trifonov

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A search for new factorial and primorial primes
by
Chris K. Caldwell
University of Tennessee at Martin
Coauthors: Yves Gallot (l'Ecole Supérieure d'Electricité)

We report on a search for the primes of the forms 2·3·...·p +/- 1 (the primorial primes) up to p=100000, and n! +/- 1 (the factorial primes) up to n=10000. We then do a heuristical analysis to suggest a possible distribution of primes of these forms and call into question the fact that we found only three new primes in these ranges.

Top 20 primorial/factorial primes

Date received: April 7, 1999

Copyright © 1999 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # cacu-05.