## Elementary Algebra

$60$
Multiples of $6$ include $\{6,12,18,24,30,36,42,48,54,60...\}$ Multiples of $10$ include $\{10,20,30,40,50,60...\}$ Multiples of $12$ include $\{12,24,36,48,60...\}$ The least common multiple in these three sets is $60$