Hmmm... the E at the end of the number is a power multiplier. So that last number is actually [5.310774 * 10 ^ -5] or [0.00005310774], which is really tiny.
It looks like it's either my program and c# adding that shorthand to save space or it might be the 3D program you are using.
What does the .obj file you are trying to convert look like?