Tue Oct 19 17:01:29 2021

prime_test
  Python version: 3.6.9
  Count the primes between N_LO and N_HI.

prime_number_sweep
  Call prime_number to count the primes from 1 to N.

         N         Pi       Time

         1          0    0.00000
         2          1    0.00000
         4          2    0.00000
         8          4    0.00000
        16          6    0.00001
        32         11    0.00003
        64         18    0.00003
       128         31    0.00010
       256         54    0.00029
       512         97    0.00103
      1024        172    0.00389
      2048        309    0.01279
      4096        564    0.05022
      8192       1028    0.19221

prime_test
  Normal end of execution.
Tue Oct 19 17:01:29 2021