Brain smoker ...

[DrD]

Several different methods, all accomplishing the objective. Han's breakdown, as a simple distribution, seems to be the easiest, human readable, and concise formula. Each of the other solutions provide very novel approaches, and provide a great way to explore some of the inner reaches of the prime.

This challenge was a spinoff of a problem posed for a Python procedure, using list comprehension. After finally getting a suitable Python solution, I couldn't resist the temptation to find a similar hp prime result.

All told, this is a neat example of distributed processing, in both human and hardware! Thanks for all the great responses!

-Dale-