For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...

If there's one thing you should know about me, it's that I'm a sucker for a good deal. Growing up in an eBay household, the sight of postal bags and clothes neatly folded, ready to be photographed, ...

This is my simple way to use the VLOOKUP function in Excel to find data fast. I walk through how I use VLOOKUP to look up inventory amounts from a table. This helps me quickly check how many items we ...

Local job listings are returning to Facebook. You'll find openings through a dedicated tab in Marketplace. Job seekers can filter and sort listings to narrow their search. If you're looking for a job, ...

A few days ago, an inscrutable interstellar interloper made its closest approach to Mars, where a fleet of international spacecraft seek to unravel the red planet’s ancient mysteries. Several of the ...

The big picture: Thousands of Londoners lose their phones to theft each year, and most never get them back. In a significant victory against organized crime, police say they have dismantled an ...

Did you know you can customize Google to filter out garbage? Take these steps for better search results, including adding my work at Lifehacker as a preferred source. The latest Apple Watches now ...

If you've been struggling to find a job in this market, give Indeed's Career Scout a try. Here's how to use it and what to know. Amanda Smith Contributor Amanda Smith is a freelance journalist and ...

Ctrl+F is a keyboard shortcut that lets you find words or phrases within a document or a webpage on a Windows computer. If you didn’t know such a shortcut existed, don’t worry. You’re not the only ...