The number A is three times the number B. The sum of A and B is 96. What is the greatest common factor of A and B?
甲数是乙数的3倍，甲、乙两数的和是96，甲、乙两数的最大公因数是多少？
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">96 / 4</gadget>
<output>24</output>

<result>24</result>