| DynamicFactorArrays | Data structures for accessing dynamic factors |
| my_mpz_wrapper | Wrapped I/O for mpz_t (multiple precision numbers) |
| numbpart | Partition number concepts |
| numtheory | Number theoretic concepts |
| parse_term | Term parsing and numeric evaluation concepts |
| polynomial | Polynomial arithmetic concepts for mpz_t |
| statistical_data | Data structures and objects related to statistical information about the progress of factorization |
1.5.4