The prime factor of number A is 2*2*3, and the prime factor of number B is 2*3*7, so what is the smallest common divisor of the numbers A and B?
甲数分解质因数是2*2*3，乙数分解质因数是2*3*7，那么甲、乙两数最小的公约数是多少．
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<result>6</result>