Results 1 to 2 of 2

Math Help - prime

  1. #1
    Member
    Joined
    Sep 2008
    Posts
    98

    prime

    Suppose that n > 1,and the decimal expansion of1/n has a purely repeating
    decimal expansion with period n-1.Prove that n is prime.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Global Moderator

    Joined
    Nov 2005
    From
    New York City
    Posts
    10,616
    Thanks
    9
    Quote Originally Posted by bigb View Post
    Suppose that n > 1,and the decimal expansion of1/n has a purely repeating
    decimal expansion with period n-1.Prove that n is prime.
    Maybe this helps.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 1
    Last Post: October 22nd 2011, 12:37 PM
  2. Replies: 1
    Last Post: June 19th 2011, 12:56 PM
  3. Replies: 3
    Last Post: February 17th 2011, 07:51 AM
  4. why is a prime squared + itself + 1 also a prime
    Posted in the Number Theory Forum
    Replies: 11
    Last Post: November 19th 2010, 07:03 PM
  5. Replies: 6
    Last Post: August 27th 2010, 11:44 PM

Search Tags


/mathhelpforum @mathhelpforum