Factors and Multiples Pages
Factor Feeder
http://www.hoodamath.com/games/factorfeeder.html
Pumpkin Multiples
Multiple Frenzy
Crazy Taxi
http://www.coolmath-games.com/0-crazy-taxi-m12/
The legend of Dick and Dom : factor and multiples
http://www.topmarks.co.uk/Flash.aspx?a=activity02
LCM and GCF Pyramath
http://www.mathnook.com/math/pyramidmath.html
LCM game
http://www.math4children.com/games-k-to-6/5th%20grade/lowest%20common%20multiple/
LCM Snowball fight
http://www.fun4thebrain.com/beyondfacts/lcmsnowball.html
Factor Trees
http://www.mathplayground.com/factortrees.html
Sketch's World GCF
http://www.fun4thebrain.com/beyondfacts/gcfsketch.html
GCF memory
http://www.math4children.com/Grade6/games/games-Memory_games/Greatest_common_factor/index.html
GCF- Fruit Splat
http://www.sheppardsoftware.com/mathgames/fractions/GreatestCommonFactor.htm