Solution: Given that the difference between the product of two larger numbers and the product of two smaller numbers is a, then:

(noun

(noun)

2)-(n

1)n=A

∫(n

(noun)

2)=(n

1

(noun)

2)=(n

1)n

2(n

1

n)

four

∴(n

(noun)

2)-(n

1)n=2(n

1

n)

4=4n

6=A

You can get ∴ n=(A-6)/4.

You can find the smallest number: n

Therefore, n, n can be obtained

1，n

2，n

3 is four consecutive natural numbers.

(I hope to adopt it, thank you)