Cut a rectangular iron sheet with a length of 13.5 decimeters and a width of 10.5 decimeters into squares of the same size. How many pieces can be cut at least?
把长13.5分米、宽10.5分米的长方形的铁皮，剪成大小一样的正方形，最少能剪多少块．
<gadget id="calculator">3 * 3 * 3 * 5</gadget>
<output>135</output>

<gadget id="calculator">3 * 5 * 7</gadget>
<output>105</output>

<gadget id="calculator">135 * 105</gadget>
<output>14_175</output>

<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">15 * 15</gadget>
<output>225</output>

<gadget id="calculator">14_175 / 225</gadget>
<output>63</output>

<result>63</result>