With features like auto-summing, chart making and the ability to track numbers from multiple lists, budgets or accounts, Microsoft Excel has become an essential business tool. You can use it to keep ...

Pop quiz. Which set of numbers will affect your behavior more: $1.99 and $2.00, or $2.00 and $2.01? If you said the first group, you are a psychological mastermind. If you want to change a person’s ...

Set theory is a mathematical abstract concerned with the grouping of sets of numbers that have commonality. For example, all even numbers make up a set, and all odd numbers comprise a set. All numbers ...

A team of four prominent mathematicians, including two Fields medalists, proved a conjecture described as a “holy grail of additive combinatorics.” Within a month, a loose collaboration verified it ...

Rebecca Lake is a certified educator in personal finance (CEPF) and a banking expert. She's been writing about personal finance since 2014, and her work has appeared in numerous publications online.

Kelly-Ann Franklin has spent more than two decades in journalism which has helped her build a wide knowledge base of business and personal finance topics. Her goal with editing is to ensure tough ...

Adam Barone is an award-winning journalist and the proprietor of ContentOven.com. He has 5+ years of experience as a content strategist/editor. Robert Kelly is managing director of XTS Energy LLC, and ...

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The original version of this story appeared in Quanta Magazine. A new proof has brought mathematicians one step closer to understanding the hidden order of those “atoms of arithmetic,” the prime ...