Method Gmp.mpz()->probably_prime_p()
- Method probably_prime_p
bool
probably_prime_p(int
count
)- Description
Return 1 if this mpz object is a prime, and 0 most of the time if it is not.
- Parameter
count
The prime number testing is using Donald Knuth's probabilistic primality test. The chance for a false positive is pow(0.25,count). The higher value, the more probable it is that the number is a prime. Default value is 25.