A certain class of students goes to plant trees. They are divided into groups of 4 with one additional student, groups of 5 with one additional student, and groups of 8 with one additional student. How many students are there at least in the class?
某班同学去植树，分成4人一组多1人，分成5人一组多1人，分成8人一组也多1人，该班至少有多少人？
<gadget id="calculator">2 * 2 * 2 * 5</gadget>
<output>40</output>

<gadget id="calculator">40 + 1</gadget>
<output>41</output>

<result>41</result>