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Getting Primes With 2 And 4 (Posted on 2007-08-19) Difficulty: 2 of 5
(A) Determine all possible prime numbers f such that each of (f+1)/2 and (f-1)/4 are prime numbers.

(B) What are the possible prime numbers g such that each of (g+1)/4 and (g-1)/2 are prime numbers?

See The Solution Submitted by K Sengupta    
Rating: 4.0000 (2 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re(2): f and gPaul2007-08-22 17:55:30
re: f and gK Sengupta2007-08-22 05:13:32
Solutionf and gPaul2007-08-21 15:56:52
Charlie, not Charleyxdog2007-08-20 09:26:41
solution/spoilersxdog2007-08-19 19:31:22
Some Thoughtscomputer exploration -- no proof -- spoilerCharlie2007-08-19 14:44:29
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