Link blogged: On prime number spiral pattern
Link blogged: On number spiral patterns
Source credited: NumberSpiral.com - https://www.numberspiral.com/
The following number spiral shows all the primes that occur within the first 46,656 non-negative integers. (For clarity, non-primes have been left out.) It looks as though primes tend to concentrate in certain curves that swoop away to the northwest and southwest, like the curve marked by the blue arrow.