All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Just Math
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: ( Back to comment list | You must be logged in to post comments.)
Concurrence | Comment 4 of 7 |
Nicely done, Steve H
  Posted by Steve Herman on 2004-11-21 12:22:22
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (14)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2024 by Animus Pactum Consulting. All rights reserved. Privacy Information