Theory: How to determine (verify) and predict if a number is Prime:
Most all mathematics can be explained graphically. So why should this not be true of prime numbers.----
If a logarithmic spiral is created with each Pi radians * the radius equal to the corresponding sequential prime number---- then the equation of the logarithmic spiral describes the changing of the rate and can be used to determine and verify prime numbers.
I will be adding more content to support this work soon. However do not wait and test the theory for yourself.
May the Creative Force be with You!