Use potted flowers to decorate the playground. How many potted flowers can be placed in a row with 7 pots or 9 pots in each row?
用盆花装饰操场，每行摆7盆或9盆都可以摆成整行最少有多少盆花？
<gadget id="calculator">7 * 9</gadget>
<output>63</output>

<result>63</result>