Question

Find the least common multiple of 6 and 15.

• A. 30
• B. 9
• C. 90
• D. None of the above

Answer 1

The correct option is A 30

In the multiplication table of 6 and 15

$6\times 5$ = 30 and $15\times 2$ = 30
$\Rightarrow$ 30 is the least number that is evenly divisible by both 6 and 15.
$\therefore$ LCM(least common multiple) of 6 and 15 is 30