Step 1
Get some paper and a pencil
Step 2
Write this number down
Step 3
Anger the authorities, have them catch you with this, and get prosecuted
Congratulations you are guilty of possessing a prime number that can decode DVD's. Have fun! Section 17 USC 1201(a)(2) says it is illegal to traffic any circumvention technology or devices. This article posted courtesy of a non US resident.
It should also be noted the irony that this article and the currency system it is running on use strong cryptography just as DVD encryption has a very weak form of cryptography.
Image source CMU and ACM