The difference between the product of the last two numbers and the product of the first two numbers of three consecutive natural numbers is 114. What is the smallest number among these three numbers?
三个连续的自然数后面两个数的积与前面两个数的积之差是114，那么这三个数中最小的数是多少．
<gadget id="calculator">57 - 1</gadget>
<output>56</output>

<result>56</result>