Win a copy of echochrome!

Now available on the PLAYSTATION Store, this MC Escher-inspired puzzler is downloadable for only $10. Want to try your luck at scoring a copy for free? Here you go.

• To enter this giveaway, leave a comment with the biggest prime number you can think of.
  

• You must be 18 years or older and a resident of the US or Canada (excluding Quebec).
  

• Limit 1 entry per person.
  

• This entry period ends at 12:00pm ET on Monday, May 5th. We'll randomly select 1 winner at that time.
  

• For complete rules, click here.

Note: Please make sure you know how to use the PLAYSTATION Network Downloader before entering this contest. You will receive a digital download of the game. Visit store.playstation.com and try downloading one of the many free videos and demos available.

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