What is the smallest natural number that leaves 1 when divided by 4, 2 when divided by 5, and 3 when divided by 6?
被4除余1，被5除余2，被6除余3的最小自然数是多少．
<gadget id="calculator">2 * 2 * 3 * 5</gadget>
<output>60</output>

<gadget id="calculator">60 - 3</gadget>
<output>57</output>

<result>57</result>