The product of two numbers is 900, one factor remains the same, the other factor is multiplied by 3, what is the product.
两个数的积是900，一个因数不变，另一个因数扩大3倍，积变成多少．
<gadget id="calculator">900 * 3</gadget>
<output>2_700</output>

<result>2_700</result>