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Update find_lcm.py (#1019)

* Update find_lcm.py

Improved code quality and added comments.

* Make the doctests work
T
thiru15 committed
9f8953dc0c39452bf6dccb76644bcb054d023dfb
Parent: f438440
Committed by cclauss <cclauss@me.com> on 7/18/2019, 9:40:51 PM