The dividend is 288, the quotient and remainder are 2 and 4 respectively, find the divisor.
被除数是288，商和余数分别是2、4，求除数．
<gadget id="calculator">288 - 4</gadget>
<output>284</output>

<gadget id="calculator">284 / 2</gadget>
<output>142</output>

<result>142</result>