A number=2*3*11*a, B number=2*3*5*a, when the greatest common divisor of A and B is 66, a=how many.
甲数=2*3*11*a，乙数=2*3*5*a，甲乙两数的最大公约数是66时，a=多少．
<gadget id="calculator">66 / 2 / 3</gadget>
<output>11</output>

<result>11</result>