mersenneforum.org - View Single Post - x!^n+/-1 or x#^n+/-1?

rogue · 2020-11-13, 16:01

Is there any interest from anyone here in searching for primes in the form x!^n+/-1 or x#^n+/-1? I would refer to them as "power factorial" or "power primorial". As far as I know these forms have never been searched or n>1. It would be fairly easy to modify fsieve and psieve to support them.

2020-11-13, 16:01	#1
rogue "Mark" Apr 2003 Between here and the 2·5·17·37 Posts	x!^n+/-1 or x#^n+/-1? Is there any interest from anyone here in searching for primes in the form x!^n+/-1 or x#^n+/-1? I would refer to them as "power factorial" or "power primorial". As far as I know these forms have never been searched or n>1. It would be fairly easy to modify fsieve and psieve to support them.