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.
The library fixes each group only up to conjugacy in the symmetric group.
The permutations PrimitiveGroup returns need not be those other sources
give for the same group, such as earlier versions of PrimGrp, or Magma.
For where the data comes from, and who computed which part of it, see the manual.
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.