JF's calculations for PRIME numbers

[woodelf]

John Allain wrote:
>>If anyone has any suggestions, they would be appreciated!
> 
> 
> I think we tried to direct you in the past towards arbitrary precision
> integer arithmetic for your calculations, as you chose to deviate
> from that it is my belief, at least, that you chose to waste your own time.
> 
> 
I say read Knuth instead.  Just reading a section on largest known primes
in the form of 2^n -1 you get some rather big numbers: 2^20996011 - 1 is
6,300,000 decimal digits.
Ben alias woodelf