At the start of a YouTube video titled “Art of Problem Solving: Least Common Multiple,” Richard Rusczyk invites viewers to play a game. Every twenty-four seconds, we’re supposed to clap; every ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? In a new video, mathematician Presh Talwalker of the YouTube channel Mind Your ...

Tech companies like Amazon are rumored to pose challenging math problems during interviews. A viral YouTube video explores a tricky math problem allegedly used in an Amazon interview. The problem ...