How many natural numbers between 1500 and 8000 are divisible by 12, 18, 24, 42 at the same time?
在1500至8000之间能同时被12，18，24，42四个数整除的自然数共有多少个．
<gadget id="calculator">15 - 2</gadget>
<output>13</output>

<result>13</result>