A Truely Large Prime
(Another of the Prime Pages' resources)
The Largest Known Primes Icon
 
Our university will have a core network upgrade on Saturday, June 1, beginning at 6 AM CDT (11 AM UTC/GMC). The outage should last less than four hours.   Chris Caldwell (caldwell@utm.edu)

Eve, the now ubiquitous eaves-dropper, first considered cryptology when her Dad showed her a very large prime.  Curiously it was also the smallest prime.
a big 2 is a big
prime
Image by Matthew Harvey © 2003