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2016-04-08, 11:27   #2
science_man_88

"Forget I exist"
Jul 2009
Dumbassville

23·1,049 Posts

Quote:
 Originally Posted by PawnProver44 I had just come up with two forms that are hard to find proven primes. Are there any journals to show that theses forms should be considered?: Comment: Generalized Mersenne (Of the form a^n-(a-1)^n or (a^n-b^n)/(a-b)) Comment: Generalized/Dual Sierpinski/Riesel (Of the form b^n+/-c or k*b^n+/-c) Please leave your opinion on these forms below! (For the Prime Pages' top 20)
you can eliminate a lot of the last form listed with just simple thought and knowledge of arithmetic progressions. this along with necessary conditions can eliminate a lot. before you sieve with primes you can sieve within the progressions themselves.

Last fiddled with by science_man_88 on 2016-04-08 at 11:49