Probably this is well known. http://www.freepatentsonline.com/5373560.html
http://mathworld.wolfram.com/PrimeNumber.html (check (3)) > Because of their importance in encryption algorithms such as RSA encryption, > prime numbers can be important commercial commodities. In fact, R. Schlafly > (1994) has obtained U.S. Patent 5373560 on the following two primes > (expressed in hexadecimal notation): fuck, fuck, fuck.
