Question

The product of four consecutive positive integers is 840. Find the numbers

Answer 1

let x be the first number
the next consecutive number would be (x+1)
and the one after would be (x+2)
and the 4th one would be (x+3)

and the product of these 4 numbers equals 840
so
x(x+1)(x+2)(x+3) = 840
and now solve for x