Find the smallest natural number that leaves 1 when divided by 3, 2 when divided by 4, 3 when divided by 5, and 4 when divided by 6. What is this number?
求一个最小的自然数，使它除以3余1，除以4余2，除以5余3，除以6余4．这个数是多少．
<gadget id="calculator">60 - 2</gadget>
<output>58</output>

<result>58</result>