20 September 2024 03:43:20 PM prime_fermat_test(): C++ version prime_fermat() applies Fermat's primality test to an integer. The test will be repeated with 3 different bases. 11 may be a prime. 15 is definitely not a prime. 221 is definitely not a prime. prime_fermat_test(): Normal end of execution. 20 September 2024 03:43:20 PM