Largest known prime number discovered: Why it matters

By Anthony Bonato, Professor of Mathematics, Ryerson University. jodi foster (Warner Bros. 1997) In the movie Contact, based on the novel of the same name by Carl Sagan, Dr. Ellie Arroway searches for intelligent extraterrestrial life by scanning the sky with radio telescopes. When Arroway, played by Jodie Foster, recognizes prime numbers in an interplanetary signal,…