If $a,b$ greater than or equal to 1 and if the $\text{gcd}(a,b)=1$ explain how we know that the $\text{lcm}(a,b)=ab$.
Elementary Number Theory. Test Question.
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0If $\gcd(a,b) = 1$, then $a \mid t$ and $b \mid t$ implies $ab \mid t$. – 2012-09-19
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0Related to, if not a duplicate of http://math.stackexchange.com/questions/194961/prove-if-am-and-bm-and-gcda-b-1-then-abm – 2012-09-19