Talk:Dihedral prime

From Wikipedia, the free encyclopedia

You have new messages (last change).

I've just removed the following:

"In binary, all primes are dihedral."

I've no idea where that claim came from. First few counterexamples:

  • 2 → 10 → 01
  • 19 → 10011 → 11001 → 25
  • 59 → 111011 → 110111 → 55
  • 79 → 1001111 → 1111001 → 121

-- Smjg 17:19, 3 March 2007 (UTC)

You're absolutely right. At face value, it was a false statement. It probably came from my study of palindromic primes in binary and I probably forgot the word "palindromic" when I put it in here (I forget lots of things these days). Well, that's the beauty of talking about actual numbers: wrong statements can be identified with ease. PrimeFan 23:12, 3 March 2007 (UTC)

[edit] Hexadecimal

I saw a comment in the article source "TO DO: find or disprove hex# dihedral primes with 3 and E". E3 hexadecimal = 227 decimal is itself prime. —David Eppstein 17:53, 5 March 2007 (UTC)

Retrieved from "http://en.wikipedia.org../../../d/i/h/Talk%7EDihedral_prime_813f.html"