adding factorial#930

Merged

cclauss merged 3 commits intoTheAlgorithms:masterfrom

jpg-130:factorial

Jul 17, 2019

Commits on Jun 29, 2019

adding factorial
jpg-130
committed

Commits on Jul 14, 2019

adding doctest
jpg-130
authored

Commits on Jul 17, 2019

Update factorial.py
jpg-130
authored