[issue39648] Update math.gcd() to accept "n" arguments.

[SilentGhost]

SilentGhost <ghost.adh at runbox.com> added the comment:

You could (should?) use reduce, then:

>>> functools.reduce(math.gcd, (6, 30, 40, 60, 20, 40))
2

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nosy: +SilentGhost

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39648>
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