Illegal Prime Numbers
[ Ignoring the morality of making ideas illegal... ]This demonstrates the difference between data (i.e. the number itself) and information (the interpretation of data and use cases derived from that interpretation).What is "illegal" here is certain kinds of encryption and security software. A prime number is not the same thing as encryption and security software. But you can specify processes which allow encryption and security software to be uniquely identified by a prime number. The interpretation combined with the data is what's important, not the data in isolation.