Allow factorizing permutations into words in somewhat larger examples #5918

Job	Run time
Test in OpenBSD	7m 43s
Cross compiler for s390x	27m 6s
testinstall - - ubuntu-latest	4m 45s
teststandard - - ubuntu-latest	19m 26s
testmanuals - - ubuntu-latest	6m 3s
testexpect testmockpkg testspecial test-compile testlibgap testkernel testworkspace - - ubuntu-latest	6m 37s
testpackages testinstall-loadall - - ubuntu-latest	26m 23s
makemanuals testmakeinstall - CONFIGFLAGS="--prefix=/tmp/gapprefix" NO_COVERAGE=1 - ubuntu-latest	5m 18s
teststandard - ABI=32 CONFIGFLAGS="" - ubuntu-20.04	18m 25s
testinstall - HPCGAP=yes ABI=64 - ubuntu-latest	7m 19s
testmockpkg testinstall - BOOTSTRAP_MINIMAL=yes - macos-latest	4m 25s
testbugfix - CONFIGFLAGS="--enable-memory-checking" - ubuntu-latest	31m 19s
testbuildsys testmockpkg testinstall - NO_COVERAGE=1 ABI=64 BUILDDIR=out-of-tree CONFIGFLAGS="--enable-valgrind" - ubuntu-latest	4m 39s
testbuildsys testmockpkg testinstall - NO_COVERAGE=1 ABI=32 BUILDDIR=out-of-tree CONFIGFLAGS="" - ubuntu-20.04	4m 15s
testinstall - JULIA=yes CONFIGFLAGS="--enable-debug" - ubuntu-20.04	4m 34s
testmockpkg testinstall - - windows-2019	15m 28s
Send Slack notification on status change	0s
	3h 13m 45s

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