slow_primes (cargo): Deprecated in favour of `primal`.  A library to generate, identify and handle prime numbers and related properties.  This library includes slow enumeration of primes up to a bound, slow factorisation of arbitrary numbers, fast primality tests and state-of-the-art estimation of upper and lower bounds for π(n) (the number of primes below n) and p_k (the k-th prime). 
Keywords: primes|mathematics|number-theory|math