In a basket of eggs, 5 are 5 and 1 is left, 3 is 3 and 1 is left, 2 is 2 or 1 is left, how many eggs are there at least in this basket?
一篮鸡蛋，5个5个数余1个，3个3个数也余1个，2个2个数还是余1个，买的这篮鸡蛋至少有多少个？
<gadget id="calculator">2 * 3 * 5</gadget>
<output>30</output>

<gadget id="calculator">30 + 1</gadget>
<output>31</output>

<result>31</result>