When a number is divided by 5, the quotient is 13 and the remainder is 4. What is the number?
一个数除以5，商是13，余数是4，这个数是多少．
<gadget id="calculator">5 * 13</gadget>
<output>65</output>

<gadget id="calculator">65 + 4</gadget>
<output>69</output>

<result>69</result>