If a square can be divided into 16 small squares with a side length of 1 cm, what is the area of this large square?
若一个正方形能分割成16个边长是1厘米的小正方形，那么这个大正方形的面积是多少．
<gadget id="calculator">1 * 1 * 16</gadget>
<output>16</output>

<result>16</result>