bpo-39479:Add math.lcm() function: Least Common Multiple

[ananthan-123]

https://bugs.python.org/issue39479

[the-knights-who-say-ni]

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[corona10]

Please run make patchcheck and make test before you submit your PR.

[bedevere-bot]

A Python core developer has requested some changes be made to your pull request before we can consider merging it. If you could please address their requests along with any other requests in other reviews from core developers that would be appreciated.

Once you have made the requested changes, please leave a comment on this pull request containing the phrase I have made the requested changes; please review again. I will then notify any core developers who have left a review that you're ready for them to take another look at this pull request.

[ananthan-123]

Is there any more changes to be made.

[ananthan-123]

I have made the requested changes; please review again

[bedevere-bot]

Thanks for making the requested changes!

@serhiy-storchaka, @mdickinson, @vstinner: please review the changes made to this pull request.

[mdickinson]

Retracting my approval: I didn't notice the most recent doc change (replacing "both" with "nonzero"), and I don't think this change is desirable.

[bedevere-bot]

A Python core developer has requested some changes be made to your pull request before we can consider merging it. If you could please address their requests along with any other requests in other reviews from core developers that would be appreciated.

Once you have made the requested changes, please leave a comment on this pull request containing the phrase I have made the requested changes; please review again. I will then notify any core developers who have left a review that you're ready for them to take another look at this pull request.

[ananthan-123]

I have made the requested changes; please review again

[bedevere-bot]

Thanks for making the requested changes!

@serhiy-storchaka, @mdickinson, @vstinner: please review the changes made to this pull request.

[ananthan-123]

Is there any more changes to make.
I have made the requested changes; please review again

[bedevere-bot]

Thanks for making the requested changes!

@serhiy-storchaka, @mdickinson, @vstinner: please review the changes made to this pull request.

[mdickinson]

LGTM. Do you want to add your name to the Misc/ACKS file?

[ananthan-123]

no.

[ananthan-123]

I'm starting a new PR for this as some pro blems caused.
I'm sorry for what happened.
new PR--#18547