or
or
Let,
the three numbers are x, x+1, x+2
Here, two smaller numbers are x, x+1 respectively
The sum of three consecutive number is 3X+3 = 123
so, X= (123-3)/3
= 40
Two smallers numbers are 40 and 41 respectively
So their product is 40*41
= 1640
Answere: 1640
