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Posted: Thu Dec 14, 2017 7:09 pm
gcd(a,0) = ?
Posted: Thu Mar 01, 2018 8:02 pm
Because $a$ id divided by $a$ and it is the greatest divisor of $a$.
$0$ is also divided by $a$.
So, the desire answer is $\fbox a$.
Google first to know the answer of this type of familiar question.