A cuboid whose length, width, and height are all prime numbers, has an upper area of 6 square meters and a front area of 15 square meters, what is its side area in square meters?
一个长方体，长、宽、高都是素数，上面的面积是6平方米，前面的面积是15平方米，那么它的侧面积是多少平方米
<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<result>10</result>