If a number is divided by 160, the remaining 4 is removed, and when 240 is removed, the remaining 6 is what is the largest number.
一个数去除160余4，去除240余6，这个数最大是多少．
<gadget id="calculator">2 * 3 * 13</gadget>
<output>78</output>

<result>78</result>