The greatest common divisor of two numbers is 6, and the least common multiple is 504. If one of the numbers is 42, what is the other number?
两个数的最大公约数是6，最小公倍数是504，如果其中一个数是42，那么另一个数是多少？
<gadget id="calculator">504 / 42</gadget>
<output>12</output>

<gadget id="calculator">12 * 6</gadget>
<output>72</output>

<result>72</result>