pile of candies, 3 candies and 1 candy at the end, 5 and 5 candies and 1 candy at the end, 7 and 7 candies and 1 candy at the end, how many candies are there at least in this pile?
一堆糖果，3颗3颗地数最后余1颗，5颗5颗地数最后也余1颗，7颗7颗地数最后还是余1颗，这堆糖果至少有几颗？
<gadget id="calculator">3 * 5 * 7</gadget>
<output>105</output>

<gadget id="calculator">105 + 1</gadget>
<output>106</output>

<result>106</result>