What colour is 27?
More on number/color synesthesia, including your questions for with Alex Dainis.
Supported by: http://www.squarespace.com/ (numberphile5 for discount)
Blog with graphs: http://bit.ly/11yaWb8
Original video at: http://www.youtube.com/watch?v=dNy23tJMTzQ
Alex's channel is: http://www.youtube.com/user/Lexie527
Huge thanks to Dave Wiley!