pushed fixes for both problems (i.e. mpz-fac and mpz-pow) as 59e72c69c00abf9095d82e9a7b65f9c1b54d105c to https://github.com/sfrank/sb-gmp
pushed fixes for both problems (i.e. mpz-fac and mpz-pow) as 59e72c69c00abf9 095d82e9a7b65f9 c1b54d105c to https:/ /github. com/sfrank/ sb-gmp