The product of three consecutive odd numbers is 6,783.

What are the numbers?

3 answers

Let x be the first number. Solve this equation:
x(x+2)(x+4) = 6783

Instead of trying to solve a messay cubic equation, try a few odd numbers for "x" that are a bit less that the cube root of 6783 (which is 18.929). The next smaller odd number is 17.

Give it a try.
17 19 21
Please help me, my math sucks, I'm lazy and nothing makes sense.