The greatest common factor of two numbers A and B is 6, and the least common multiple is 36. Given that the number A is 12, what is the number B?
甲、乙两数的最大公因数是6，最小公倍数是36，已知甲数是12，则乙数是多少．
<gadget id="calculator">36 / 12</gadget>
<output>3</output>

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

<result>18</result>