Image for Webscape: Hunting for new prime numbers

Webscape: Hunting for new prime numbers

Duration: 04:07

Kate Russell's weekly review of the best apps and websites.

The biggest known prime number is 17m decimal places long, but there are a lot of prime numbers below that which are still missing. Citizen science project Prime Challenge wants your help to find them using the power of cloud computing.

If you have got a lot of old photos on paper Pic Scanner is a new app on iOS that should save you loads of time by letting you scan, auto crop and save up to four photos in one go.

When is a game not a game? When it is The Stanley Parable - a thought-provoking exploration of choice and free will in video games. Originally created as a fan modification for the popular first person shooter, Half-Life 2, its creator bills it as a "first-person exploration" game.

And for this week’s video of the week, catch up on a year of crazy world record breaking highlights courtesy of the Guinness World Record’s official YouTube channel.

Available since: Mon 17 Mar 2014

This clip is from

Click 15/03/2014 GMT

Guide to the latest gadgets, websites, games and computer industry news.

First broadcast: 15 Mar 2014

Image for 15/03/2014 GMT

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