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Old 2017-04-20, 16:00   #6
VBCurtis's Avatar
Feb 2005
Riverside, CA

2·11·227 Posts

Originally Posted by a1call View Post
n! + p is prime for a given n. Leave it up to them to figure out they can start by next-prime(n+1) since anything between 1 and n would give a composite.
Are you saying n! +1 up to n!+n are all composite? I must not understand what you mean by "anything between 1 and n", because there are lots of examples where n!+1 are prime.

Last fiddled with by VBCurtis on 2017-04-20 at 16:02
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