Results 1 to 2 of 2

Math Help - Multiplicative inverse

  1. #1
    Junior Member
    Joined
    Feb 2006
    From
    Canada
    Posts
    45

    Exclamation Multiplicative inverse

    Find the multiplicative inverse of [87] in Z150.

    Use this answer to find all x in Z150 so that [87]x = [11].


    Thanks guys
    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 suedenation
    Find the multiplicative inverse of [87] in Z150.

    Use this answer to find all x in Z150 so that [87]x = [11].


    Thanks guys
    I understand your question as,
    Given the ring with unity \mathbb{Z}_{150} find the multiplicative inverse of 87.
    Thus, you need to solve the congruence,
    87x\equiv 1\mod (150)
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Multiplicative Inverse
    Posted in the Discrete Math Forum
    Replies: 1
    Last Post: February 16th 2011, 11:48 AM
  2. multiplicative inverse
    Posted in the Number Theory Forum
    Replies: 2
    Last Post: April 23rd 2010, 01:31 PM
  3. Multiplicative inverse 71.7
    Posted in the Differential Geometry Forum
    Replies: 1
    Last Post: October 26th 2009, 09:34 AM
  4. Multiplicative Inverse of...
    Posted in the Algebra Forum
    Replies: 1
    Last Post: April 29th 2009, 09:06 PM
  5. Multiplicative Inverse?
    Posted in the Algebra Forum
    Replies: 3
    Last Post: December 27th 2007, 10:43 AM

Search Tags


/mathhelpforum @mathhelpforum