If a number is divided by 2, 5, and 7, the remainder is 1. What is the smallest number?
一个数除以2、5、7分别都余1，这个数最小是多少．
<gadget id="calculator">2 * 5 * 7</gadget>
<output>70</output>

<gadget id="calculator">70 + 1</gadget>
<output>71</output>

<result>71</result>