Kindergarten aunts divide the candy, each person divides 2 yuan and 1 yuan, each person divides 3 yuan and 2 yuan, each person divides 5 yuan and 4 yuan, at least how many pieces of candy are there.
幼儿园阿姨分糖块，每人分2块余1块，每人分3块余2块，每人分5块余4块，至少有多少块糖．
<gadget id="calculator">2 * 3 * 5</gadget>
<output>30</output>

<gadget id="calculator">30 - 1</gadget>
<output>29</output>

<result>29</result>