changed distinct degree factorization so as to use precomputed inverse versions, less gcd's, and less modular compositions
changed distinct degree factorization so as to use precomputed inverse versions, less gcd's, and less modular compositions

wbhart/flint2,fredrik-johansson/flint2,dsroche/flint2,fredrik-johansson/flint2,jpflori/flint2,dsroche/flint2,jpflori/flint2,wbhart/flint2,fredrik-johansson/flint2,jpflori/flint2,dsroche/flint2,wbhart/flint2,jpflori/flint2,dsroche/flint2