A different way to work the factorization of numbers. The students have to replace factors by colors. Please, rate this material if you like it!License Creative Commons:You are free to share — copy and redistribute the material in any medium or format. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license. NonCommercial — You may not use the material for commercial purposes. NoDerivatives — If you remix, transform, or build upon the material,