# 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

# Which one was the best for helping you learn the concepts listed in the title of this post?

## 3 thoughts on “Prime, Composite, Factors and Multiples”

1. Dear Miss Hunichen,
I did play each of the games except for the timestable ones. I found the game where you have to fire the cannons to hit the numbers or words hard becuase of the controls. I’m used to either the WASD keys or the up, down and side to side keys so it was confusing to control. Which then made me want to give up on it easily.
I thought that the prime factorisation game explained the methods clearly and helps people to understand what prime factorisation is.
I think the bingo game is clever, but to be honest, I really didn’t like the voice of the instructor. I know I’m probably being too picky though.
I think the factors millionare game was one of my favourite games because it was clever and asked questions which alot of people sometimes get tricked on. I think more and different questions would allow people to spend longer on it and challenge their knowledge about factors and multiples.
Alexandra.

• Wow Ali, what a comprehensive comment in regards to all of the maths games. I’m glad you took the time to check out each of the links and have thought hard about which games you enjoyed the most and why. I agree that the controls on the cannon game were hard to work out. I got rather frustrated with this game too! I think that in regards to the bingo game you are being particularly picky. Apart from this voice what did you think? The millionaire game was great fun I thought and yes some of the questions made me think quite hard, especially those related to divisibility rules. Have you learnt these rules with Mrs Condon?
Miss Hunichen

2. Dear Miss Hunichen,
I enjoyed the maths games on the blog all except the game where you fire cannons at the right answer. That was really aggravating! All the other games were great. My favourite one was the prime factorisation game. I don’t know why I enjoyed. Maybe it’s because I like being right and I suck at prime factorisation.
I found the games helped me with recognizing the difference between factors and multiples though I’m still pretty bad at it. I’m ok with prime and composite numbers but I wish there was a way to memorise all the prime numbers so you wouldn’t have to figure them out every time you need them.
Overall these games were very helpful with prime and composite numbers and recognizing the difference between factors and multiples. It was also enjoyable at the same time!
From Jessica N.