https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97459
--- Comment #12 from Thomas Koenig <tkoenig at gcc dot gnu.org> --- (In reply to Thomas Koenig from comment #11) > Created attachment 49438 [details] > Numbers a, b so that 2^b ≡ 1 mod a up to b=64, larger b taken if several > solutions exist > A quick check that all numbers are correct is awk ' { print 2 "^" $2 "%" $1 } ' divisiontable.dat | bc which shows 1 as output only.