It is known that the greatest common divisor of the two numbers A and B is 6, the least common multiple is 72, the number of A is 24, what is the number of B.
已知甲乙两数的最大公约数是6，最小公倍数是72，甲数是24，乙数是多少．
<gadget id="calculator">72 / 24</gadget>
<output>3</output>

<gadget id="calculator">3 * 6</gadget>
<output>18</output>

<result>18</result>