Wed Jan 18 09:50:42 2023

lucas_lehmer_test():
  Test lucas_lehmer().
  2^2-1 is prime
  2^3-1 is prime
  2^5-1 is prime
  2^7-1 is prime
  2^11-1 is NOT prime
  2^13-1 is prime
  2^17-1 is prime
  2^19-1 is prime
  2^31-1 is prime
  2^61-1 is prime
  2^67-1 is NOT prime
  2^89-1 is prime
  2^107-1 is prime
  2^127-1 is prime
  2^257-1 is NOT prime

lucas_lehmer_test():
  Normal end of execution.
Wed Jan 18 09:50:42 2023