Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Help for Number Theory problem

  1. Oct 14, 2007 #1
    Prove that 1/5*n^5+1/3*n^3+7/15*n is an integer for all integers n.
     
  2. jcsd
  3. Oct 14, 2007 #2

    morphism

    User Avatar
    Science Advisor
    Homework Helper

    Look at 3n^5 + 5n^3 + 7n mod 5 and mod 3.
     
  4. Oct 14, 2007 #3
    Thanks, Morphism
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook




Loading...