The greatest common factor of the two numbers A and B is 6, and the least common multiple is 168. It is known that the number A is 24, and what is the number B.
甲乙两数的最大公因数是6，最小公倍数是168，已知甲数是24，乙数是多少．
<gadget id="calculator">6 / 24</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">168 * (1/4)</gadget>
<output>42</output>

<result>42</result>