Zhang Qi's family planted 128 castor plants, and also planted 2 rows of sunflowers, 4 in each row. How many times are there more castor plants than sunflowers?
张其家中了128棵蓖麻，还种了2行向日葵，每行4棵．蓖麻的棵数是向日葵的多少倍？
<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<gadget id="calculator">128 / 8</gadget>
<output>16</output>

<result>16</result>