Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Set notation is used in mathematics to essentially list numbers, objects or outcomes. This is read as 'Z is a set of the factors of 18'. This set could also be defined by us saying: Z = {1, 2, 3, 6, 9 ...