For a two-digit number composed of four numbers 3, 5, 6, and 7, what is the largest product of these two two-digit numbers?
用3、5、6、7这四个数字组成的两位数，这两个两位数的乘积最大是多少．
<gadget id="calculator">65 * 73</gadget>
<output>4_745</output>

<result>4_745</result>