this is one of the leaked DVD encryption keys (expressed, of course, in very funny way), which is used since eternity by pirats for DVD decryption.

Used to be illegal to have it in US and other countries, don't know status now

Not only by pirates. As a Linux user, I need it to watch my legally bought DVDs since there is no viable other way.

> this is one of the leaked DVD encryption keys (expressed, of course, in very funny way)

It's actually even cooler: store this prime in base-2 and interpret it as a gzip file, and it'll gunzip to a full working DeCSS (DVD decrypter) source code in C :-)