The PrimGrp package provides the library of primitive permutation groups which includes, up to permutation isomorphism (i.e., up to conjugacy in the corresponding symmetric group), all primitive permutation groups of degree < 8192. Groups of degree 4096 to 8191 must be downloaded separately from https://doi.org/10.5281/zenodo.10411366 and then installed by following the instructions given there.
It has been formerly a part of the core GAP system, and has been converted to a separate GAP package in 2017 for the GAP 4.9 release.
Full information and documentation can be found in the manual, available
as PDF doc/manual.pdf or as HTML doc/chap0.html, or on the package
homepage at
https://gap-packages.github.io/primgrp/
Please submit bug reports and feature requests via our GitHub issue tracker:
https://github.com/gap-packages/primgrp/issues
PrimGrp is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
For details see the LICENSE file.