I believe it's called prime factorization. Each number is placed in a group of numbers (or group of groups, etc...) E.g. 24 -> 2 * 3 * 4 = Two groups of (three

I believe it's called prime factorization. Each number is placed in a group of numbers (or group of groups, etc...) E.g. 24 -> 2 * 3 * 4 = Two groups of (three groups of (four items)) Also try this for the archived version of that explanation -> https://web.archive.org/web/20130206023100/http://mathlesstraveled.com/2012/10/05/factorization-diagrams/ https://web.archive.org/web/20130206023100/http://mathlesstr...