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  • ...2^{2p^n}+2^{p^n}+1 \ = \ (2^{p^{n+1}}-1)/(2^{p^n}-1)</math> where p is the prime of apparition rank r (r(2)=1, r(3)=2, r(5)=3, ...) and n is greater or equa #If number <math>\sum_{i=0}^{p-1}\ (2^i)^{m} \ </math> is prime, then <math>m=p^n</math>.
    5 KB (759 words) - 19:04, 23 May 2024
  • {{Cullen prime |CuReserved=PrimeGrid Cullen Prime Search
    2 KB (175 words) - 14:54, 19 September 2021