# Prime, Composite, Factors and Multiples

Throughout the week we have been looking at definitions for the words in the title and have been exploring numbers that fit these definitions. We discovered there were 25 prime numbers between 1 and 100 and that there was not pattern to these at all.

We have also talked about factor trees and that composite numbers are the product of prime numbers. See the example below for the faactor tree for 54.

View the following PowerPoint Presentation that explains each of the words in the title of this post as well as demonstrating factor trees and prime factorization.

Factors & Primes  (click on the blue writing to open the PowerPoint)

http://media.emgames.com/emgames/demosite/playdemo.html?activity=M2A070&activitytype=dcr – Factor Bingo, a fabulous game to help you with factors

http://www.mathplayground.com/factortrees.html – This game will help you create factor trees and the prime factorization for the number given

http://www.math-play.com/Factors-Millionaire/Factors-Millionaire.html – This game is just like Who wants to be a Millionaire, lots of fun!

http://www.toonuniversity.com/4m_prime_d.html – An entertaining game where you have to fire the cannon to answer the questions

You can also get onto http://au.ixl.com/ and click on Year 6. Go down until you see the following:

http://www.bbc.co.uk/skillswise/game/ma13tabl-game-tables-grid-find – A great way to practise your tables knowledge

http://www.onlinemathlearning.com/factor-games.html – Another really fun way to help learn tables