In the singing competition, the students in the May 1st class are divided into groups of 9 and there is 1 student left, and in groups of 15, there is 1 student left. How many people are there at least in the 51st class?
歌咏比赛五一班的同学分成9人一组还剩1人，分成15人一组也剩1人，五一班至少有多少人？
<gadget id="calculator">3 * 3 * 5</gadget>
<output>45</output>

<gadget id="calculator">45 + 1</gadget>
<output>46</output>

<result>46</result>