The Best Episodes of Numberphile Season 1

Numberphile video about number 11, marking the last binary day of a generation: 11.11.11. Exploring barcodes, check digits and CD technology. Filmed at the home ground of Nottingham Forest Football Club, The City Ground.

Director: N/A

Writer: N/A

Explaining binary to understand why Pac-Man becomes unplayable after 255 levels.

Director: N/A

Writer: N/A

We discuss the number 16 - a perfect square - and how sitting at table 16 led to something bigger for Matt Parker. In this video is Dr Ria Symonds from the University of Nottingham.

Director: N/A

Writer: N/A

For many years, 8128 was the largest known perfect number. But what is a perfect number?

Director: N/A

Writer: N/A

6174 is also known as Kaprekar's Constant.

Director: N/A

Writer: N/A

69 is the largest number that most hand-held calculators can factorialize!

Director: N/A

Writer: N/A

Why do 220 and 284 get along so well? Dr James Grime introduces us to the world of so-called amicable numbers.

Director: N/A

Writer: N/A

Numbers can be interesting when studied in different languages and dialects - such as in Lincolnshire where we have dik, figgit and bumfit.

Director: N/A

Writer: N/A