For a number, the remainder 1 is divided by 2, the remainder 2 is divided by 3, the remainder 3 is divided by 5, the remainder 4 is divided by 5, and the remainder 5 is divided by 6. What is the smallest number?
一个数，用2除余1，用3除余2，用4除余3，用5除余4，用6除余5，这个数最小是多少．
<gadget id="calculator">60 - 1</gadget>
<output>59</output>

<result>59</result>