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axn · 2013-02-07, 11:16

Your expression simplifies to k.n.n!+1. Why not ditch the extra n and search for k.n!+1? Anyways...

Are you doing any sieving?

I am not aware of anything faster than regular PRP tests (PFGW can do that). PFGW can also prove the primality with a -tm argument.

2013-02-07, 11:16	#2
axn Jun 2003 5,387 Posts	Your expression simplifies to k.n.n!+1. Why not ditch the extra n and search for k.n!+1? Anyways... Are you doing any sieving? I am not aware of anything faster than regular PRP tests (PFGW can do that). PFGW can also prove the primality with a -tm argument.