7 pieces of square paper, 2703 cm long and 1113 cm wide, should be cut into several squares of the same size, there should be no excess paper and the side length of the square should be as large as possible. Question: What is the side length of this square?
7张正方形纸，长2703厘米，宽1113厘米，要把它截成若干个同样大小的正方形，纸张不能有剩余并且正方形的边长应尽可能的大．问：这样的正方形边长是多少厘米？
<gadget id="calculator">3 * 53</gadget>
<output>159</output>

<result>159</result>