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2021-08-06, 14:07   #15
mart_r

Dec 2008
you know...around...

7·109 Posts

Quote:
 Originally Posted by sweety439 Can floor (y*n!) always be prime?
I'm afraid not. n! grows slower per step, leaving not enough room for primes of size y*n!.
With this regard, p# has just the "right" growth rate. Any slower rate would not result in an infinite sequence of this kind.