If the greatest common divisor of an integer and 36 is 12, the least common multiple is 144. Find this integer.
若一个整数和36的最大公约数是12，最小公倍数是144．求这个整数．
<gadget id="calculator">144 / 36</gadget>
<output>4</output>

<gadget id="calculator">4 * 12</gadget>
<output>48</output>

<result>48</result>