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

If you’ve been splitting your Amazon Prime account with friends or family, you might have noticed free shipping is no longer part of the deal. Scripps News Group’s Jane Caffrey explains the big change ...

President Donald Trump uses a lot of inaccurate numbers. Sometimes, like on Thursday, he uses a bunch of them in rapid succession. At a White House event at which he announced sharply reduced prices ...

We may earn a commission from links on this page. Deal pricing and availability subject to change after time of publication. Amazon Big Deal Days is ending tonight, October 8, and Lifehacker is ...

WASHINGTON — Starting Wednesday, Oct. 1, Amazon is ending a program that allowed Prime members to share their free shipping benefits with people outside their household. In an update to its customer ...