Help Please

The graph of the paraobla is y = x^2 + 6x + 5, so a*b*c = 1*6*5 = 30.

It has to be a fraction though,

The parabola  is graphed below. Find abc. (The grid lines are one unit apart.)

https://latex.artofproblemsolving.com/3/d/c/3dcbfd37344accf75039423aaee0e135a89dc16a.png

Many people have said the answer is 30, but it has to be a fraction. Can someone PLEASE give me the correct answer?