As I see it, technology is a form of control and the UK is really into this Orwellian Society business. Since technology can be compromised especially with communications within electronics by hackers. I believe the UK has resorted to encrypting their messages in crop circles with prime numbers. Along with the encryption the symbols, music notes, flowers, planetary orbits, and various other images must be implied to have meaning the prime number.
The other theory:
Or these crop circles could be made by the reptilians spaceships by hovering over a field in a cloaked fashion and then use a microwave burst to produce the prime crop circles. Then the British Royal Crown and heads of state which are part of the reptilian blood line take this information and decrypt it on the other end with their key.
Speak Truth To Power