- Switched to `Math::Prime::Util::GMP::next_prime()` from `mpz_nextprime()`, as it is ~2x faster for large inputs.
- Switched to `Math::Prime::Util::GMP::next_prime()` from `mpz_nextprime()`, as it is ~2x faster for large inputs.

trizen/sidef,trizen/sidef,trizen/sidef,trizen/sidef