These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.07 s (backtrack: 0/20).

[ebuild  N     ] sci-mathematics/pari-2.17.4:0/9::gentoo  USE="X threads -data -doc -examples -fltk -test" 5209 KiB
[ebuild  N     ] sci-mathematics/gap-4.16.1:0/11::gentoo  USE="readline (-debug) -memcheck -minimal -test -valgrind" CPU_FLAGS_X86="popcnt" 38162 KiB
[ebuild  N     ] dev-gap/gapdoc-1.6.10::gentoo  USE="-examples -test" 1710 KiB
[ebuild  N     ] dev-gap/primgrp-4.0.3::gentoo  USE="-test" 14263 KiB
[ebuild  N     ] dev-gap/smallgrp-1.7.0::gentoo  USE="-test" 19705 KiB
[ebuild  N     ] dev-gap/transgrp-3.6.5::gentoo  USE="-test" 57671 KiB
[ebuild  N     ] dev-gap/factint-1.7.0::gentoo  USE="-test" 10481 KiB
[ebuild  N     ] dev-gap/crisp-1.4.11::gentoo  USE="-test" 315 KiB
[ebuild  N     ] dev-gap/fga-1.5.0::gentoo  USE="-test" 33 KiB
[ebuild  N     ] dev-gap/irredsol-1.4.4::gentoo  USE="-test" 18752 KiB
[ebuild  N     ] dev-gap/autpgrp-1.12.0::gentoo  USE="-test" 218 KiB
[ebuild  N     ] dev-gap/sophus-1.27::gentoo  USE="-test" 295 KiB
[ebuild  N     ] dev-gap/laguna-3.10.1::gentoo  USE="-test" 452 KiB
[ebuild  N     ] dev-gap/polycyclic-2.18::gentoo  USE="-test" 673 KiB
[ebuild  N     ] dev-gap/alnuth-4.0.0::gentoo  USE="-test" 266 KiB
[ebuild  N     ] dev-gap/radiroot-2.10::gentoo  USE="-test" 205 KiB
[ebuild  N     ] dev-gap/polenta-1.3.11::gentoo  USE="-test" 320 KiB
[ebuild  N     ] dev-gap/io-4.10.0::gentoo  USE="-examples -test" 499 KiB
[ebuild  N     ] dev-gap/autodoc-2026.06.30::gentoo  USE="-test" 523 KiB
[ebuild  N     ] dev-gap/utils-0.98::gentoo  USE="-test" 458 KiB
[ebuild  N     ] dev-gap/resclasses-4.7.4::gentoo  USE="-test" 342 KiB
[ebuild  N     ] dev-gap/atlasrep-2.1.11::gentoo  USE="-test" 24393 KiB
[ebuild  N     ] dev-gap/ctbllib-1.3.11::gentoo  USE="-test" 17715 KiB
[ebuild  N     ] dev-gap/tomlib-1.2.11::gentoo  52056 KiB

Total: 24 packages (24 new), Size of downloads: 264704 KiB