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Prime Number Arithmetic (Posted on 2004-11-19) Difficulty: 4 of 5

Find all primes p such that 2^p + p^2 is also prime.

Prove there are no others.

See The Solution Submitted by Erik O.    
Rating: 4.1250 (8 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
solution using modsBrent2007-02-05 17:44:14
Some ThoughtsSolution with partial proofMichael2004-11-26 21:25:21
ConcurrenceSteve Herman2004-11-21 12:22:22
re: Solution with mini-proofowl2004-11-20 01:26:34
re: Solution with mini-proof, Well done.Dustin2004-11-19 23:09:58
SolutionSolution with mini-proofSteveH2004-11-19 21:55:13
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