diff --git a/dev-gap/factint/Manifest b/dev-gap/factint/Manifest
new file mode 100644
index 0000000000000..89946cf13e89a
--- /dev/null
+++ b/dev-gap/factint/Manifest
@@ -0,0 +1 @@
+DIST FactInt-1.6.3.tar.gz 4684712 BLAKE2B 7b312b34ae0a4ab100647f08f0e817594cbca1105ad37cf231d608599e5fffdf0d905819ab31f08be73b759c7be892928e994d9df62aa37f8c7a2e5535508532 SHA512 28fe4cb35c10f834e5efb3baaebf5b1eaac4064b1c182a5ffa057421327de45dd690b70fb848aabac6fa254581fd76f975b497a21d427093d558919cf3716c83
diff --git a/dev-gap/factint/factint-1.6.3.ebuild b/dev-gap/factint/factint-1.6.3.ebuild
new file mode 100644
index 0000000000000..7882fd7a226da
--- /dev/null
+++ b/dev-gap/factint/factint-1.6.3.ebuild
@@ -0,0 +1,20 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit gap-pkg
+
+MY_PN="FactInt"
+MY_P="${MY_PN}-${PV}"
+DESCRIPTION="Advanced Methods for Factoring Integers"
+SLOT="0"
+SRC_URI="https://github.com/gap-packages/${MY_PN}/releases/download/v${PV}/${MY_P}.tar.gz"
+
+LICENSE="GPL-2+"
+KEYWORDS="~amd64"
+
+S="${WORKDIR}/${MY_P}"
+
+GAP_PKG_EXTRA_INSTALL=( tables )
+gap-pkg_enable_tests
diff --git a/dev-gap/factint/metadata.xml b/dev-gap/factint/metadata.xml
new file mode 100644
index 0000000000000..5538a2e4b5f81
--- /dev/null
+++ b/dev-gap/factint/metadata.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="person">
+    <email>mjo@gentoo.org</email>
+  </maintainer>
+  <maintainer type="person">
+    <email>frp.bissey@gmail.com</email>
+    <name>François Bissey</name>
+  </maintainer>
+  <maintainer type="project" proxied="proxy">
+    <email>proxy-maint@gentoo.org</email>
+    <name>Proxy Maintainers</name>
+  </maintainer>
+  <maintainer type="project">
+    <email>sci-mathematics@gentoo.org</email>
+    <name>Gentoo Mathematics Project</name>
+  </maintainer>
+  <longdescription lang="en">
+    This package provides routines for factoring integers, in
+    particular:
+
+      * Pollard's p-1
+      * Williams' p+1
+      * Elliptic Curves Method (ECM)
+      * Continued Fraction Algorithm (CFRAC)
+      * Multiple Polynomial Quadratic Sieve (MPQS)
+
+    It also provides access to Richard P. Brent's tables of factors of
+    integers of the form b^k +/- 1.
+  </longdescription>
+  <upstream>
+    <remote-id type="github">gap-packages/FactInt</remote-id>
+  </upstream>
+</pkgmetadata>